Question

If sin Tita =cos Tita, then the value of sin2 Tita= what.











​

Answer 1

Answer:

(sin2θ = 2sinθcosθ

Step-by-step explanation:

Given that sinθ+cosθ=1

now squaring both side we have

(sinθ+cosθ) ^2 =(1 )^2

sin 2^θ+cos^2θ + 2sinθcosθ = 1

=1 + 2sinθcosθ= 1 # (sin 2^θ+cos 2^θ=1)#

=2sinθcosθ=0

= (sin2θ=2sinθcosθ)

Answer 2

1

sin theta = cos theta

tan theta = 1

theta = 45°

Therefore sin 2theta = sin 90° = 1