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MathsMediumMCQ2021 · 24 Feb Shift 2

Q69.A possible value of tan( 41 sin−1 √638 ) (1) 2√2 −1 (2) 1 2√2 (3) √7 −1 (4) 1 √7

What This Question Tests

The question tests the ability to evaluate an expression involving inverse trigonometric functions by converting it into a trigonometric ratio using a right-angled triangle or identities.

Concepts Tested

Inverse sine functionTrigonometric identitiesRight-angled triangles

Formulas Used

sin⁻¹(x) = θ ⇒ sin(θ) = x

tan(θ) = sin(θ)/cos(θ)

sin²θ + cos²θ = 1

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