Question

if sin 0+1/sin0 =4 , then sin 2 0 + 1/sin2 0 is equal to

Answer 1

Answer:

o

Step-by-step explanation:

Given that sinθ+cosθ=1

now squaring both side we have

(sinθ+cosθ)

2

=1

2

sin

2

θ+cos

2

θ+2sinθcosθ=1

1+2sinθcosθ=1 (sin

2

θ+cos

2

θ=1)

2sinθcosθ=0

sin2θ=0 (sin2θ=2sinθcosθ)