1.

If sin θ = cos θ (θ = acute angle), then value of θ will be ;(A) 30°(B) 45°(C) 60°(D) 75°

Answer»

Answer is (B) 45°

sin θ = cos θ

⇒ sinθ/cosθ = 1

⇒ tan θ = 1

⇒ tan θ = tan 45°

∴ θ = 45°



Discussion

No Comment Found