Question

5. If 4 sin? 0 - 1 = 0 and angle is less than
90°, find the value of O and hence the value
of cos2 0 + tan2 e.​

Answer 1

Answer:

TRIGONOMETRIC REDUCTIONS ★

Given that :

Sin θ = Cos θ

Possible for only one set

θ = π / 4

Now , required value : 2Tanθ + Cos²θ

2 Tan 45° + Cos²45°

2 ( 1 ) + 1/2

5/2

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