Cluster · Trigonometric Identities and Equations

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Trigonometric Identities and Expressions
Questions
832
Questions in this cluster
827 total
Question Category Subtype Difficulty

The value of (cosec2B - 1) (sec2B - 1) is:

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Which of the following is equivalent to the following trigonometric expression?

(tan2 x + 1) (1 + cos 2x)

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If cos24° = \(m\over n\), then the value of (cosec 24° − cos66°) is:

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If sin θ + cos θ = \(\frac{1}{29}\) find the value of \(\frac{sinθ + cosθ}{sin θ - cos θ}\)

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If 2 Tan2A + 4Cos4A = 3, then the possible value of A is:

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The value of \(sin A \over cotA + cosecA\) - \(sin A \over cotA - cosecA\) + 1 is:

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If tanθ - cotθ = 4, then find the value of tan2θ + cot2θ.

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In Δ ABC, ∠A= 90°, AB = 20 cm and BC = 29 cm. What is the value of (sinB - cotC)?

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If tan θ + cot θ = 6, then the value of tan2θ + cot2θ is ____ .

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If sec2 α + cosα = 5/2 and 0° ≤ α ≤ 90°, then find the value of α.

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If secθ + tan θ = 2 then secθ - tanθ = ?

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The given expression is equivalent to:

\(\sqrt{secθ+1\over secθ-1}\ +\ \sqrt{secθ-1\over secθ+1}\)

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If A = 30°, then find the value of \(\frac{(2 tan A) }{(1 - tan² A)}\).

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If cotθ = \(\frac{3}{4}\), θ is an acute angle, then sinθ + cosθ - tanθ is equal to:

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Find the value of [(1/sec2 A) + (1/cosec2 A)] × (tan2 B - sec2 B)

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sin2x + 2 sin4x + sin 6x = k(sinx. cos3x . cos 2x) , what is the value of k?

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Find the value of [Sin 30° + Cos 60°]/[Sin 60° + Cos30°]

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Find the value of [sin 30°cot 45° - cosec 60° tan 30°]/[tan 60° cot 30° + sin 60° cos 30°]

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Find the value of sin30° + tan 30° - 2sec 45°cosec 45° + 3 sin π/4.

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Find the value of sec(π/2 - 30°) + cos(π/2 - 45°) - 2cot(- 90°) + 15\(\sqrt3\)cosec(- 60°).

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Which of the following options is equivalent to the following trigonometric expression?

4 sin2(π/4 + x) sin2(π/4 - x) - 4 sin2x cos2x

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If (sin A = cos30°), what is the value of (2tan2A - tan45°), given that A is an acute angle?

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x and y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 20°), the value of tan(x + y) is:

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What is the value of the following trigonometric expression?

tan 210° + cot 120° + sec 240° + sin 150°

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If tan A = 12/5, the value of Sin A + 2Cos A × Cot A is?

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Which among the given option is equal to the value of: \(\frac{\cos \theta}{\sin \theta}+\frac{\sin \theta}{\cos \theta}\)

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If sinØ = 1/2, then find the ratio of the square of Ø and its complementary angle.

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If cosx + cos2x = 1, Find the value of cosx + 1/sec2x.

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Find the value of sec237º - 1/tan253º.

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If cosec A = 25/7, then find the value of sec A.

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If tan x = 3/4, then what is the value of (sin 2x)/(cos 3x)?

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Which of the following is equivalent to the following trigonometric expression?

(cos2x - sin2x + 2 sinxcosx)(1 - 2 sin2x - 2sin xcos x)

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if sin θ = -1/2 and cos Ø = 4/5 then, find the value of sin Ø × sec θ.

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Which of the following option is equivalent to the given trigonometric expression?

(sin x + sin 2x + sin 3x)/(sin x)

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If 2sin x – 4sin3 x = sec x/2, then what is the value of sin 4x?

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A, B and C are angles of a triangle, then what is the value of 1/(tan A tan B) + 1/(tan B tan C) + 1/(tan C tan A)?

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Which of the given options is equivalent to the following trigonometric expression?

(tan x - tan y)[cos (x + y) + cos (x - y)]

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If cosθ + cos2θ = π/180°. What will be the value of sin2θ + sin4θ?

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If α + β = 105o and 4α = 3β, then find the value of sin2α + cos2β.

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If tan A = (7/8), then find the value of:

\(\frac{6 \cos A\ + \ 3 \sin A}{\sin A\ +\ 2 \cos A}\)

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If cosec θ + cot θ = 2, then find the value of cosec θ.

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What is the value of the following trigonometric expression?

(sec2 240° + tan 225° - sec 240° cot 210°/cos 225°)/(tan 240° + sec 225°)

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Evaluate: (cot 10º × cot 30º × cot 40º × cot 50º × cot 80º × √3)

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If SinACosB + CosASinB = 0, find the value of B, if A = 30º.

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Find the value of [(1/sec2 A) + (1/cosec2 A)] × (tan2 B - sec2 B)

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Find the value of Ø, if √2secØ - tanØ = 1. (0° < Ø < 90°)

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If sin(A + B) = 1 and cos(A - B) = (√3/2), where 90° ≥ A > B > 0° then, find the value of tanA.

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If sin x = 3/5 then, find the value of (cot x × cosec x).

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If sec(60º - 2x) = 1, Find the value of x.

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Find the value of sin 75ºcos 75º.

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