Question

If sin θ=cos θ, then find value of 2tan θ+cos sqaure θ. Any ome pls answer me. (Cbse class 10)

Answer 1

sinθ=cosθ then θ=45°

as sin 45°=cos 45°=1/√2

Now, 2 tanθ+cos²θ

=2 tan 45°+ (cos 45°)²

=2*1+(1/√2)²

=2+1/2

=5/2

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