Question

if sin theta = cos theta then find the value of 2tan theta+c os square theta is

Answer 1

Answer:

2 tanθ + cos²θ = 5/2

Step-by-step explanation:

Given: sin θ = cos θ

To find: 2 tanθ + cos²θ

Solution:

cos θ = sin(90-θ)

Since, sin θ = cos θ

we have sinθ = sin(90-θ)

θ = 90 -θ

2θ = 90

θ =45

2 tan 45 + cos² 45 = 2 (1) + 1/2 = 2 + 1/2 = 5/2

∴2 tanθ + cos²θ = 5/2 when sin θ = cos θ

Answer 2

Answer:

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Step-by-step explanation:

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