Question

In sin θ = cos θ, then find the value of 2 tan θ + cos2 θ.

Answer 1

Answer: sinθ is equal to cosθ only when θ is 45 degree when θ is between 0 and 90 degree

Answer 2

Step by step explanation

Sin theta = cos theta

Possible for only one set

theta = pi/4

Now, required value 2 tan theta + cos^2 theta

2 tan 45° + cos^2 45°

= 2(1) + 1/2

= 5/2

HOPE Uu UNDERSTAND !!