Question

(1+costheta) (1-costheta) (1+cot^2theta)=1


please do this question quick very urgent

l will mark you as a BRAINLIST ​

Answer 1

Answer:

Equation =

= (1+cosA) (1-cosA)(1+cot²A)

= (1-cos²A) (1+cot²A)

= sin²A cosec²A

= (sin²A) (1/sin²A)

=1

Answer 2

Answer:

is this ur real dp

if it is so

then u r vry cute

Step-by-step explanation:

(1−cosθ)(1+cosθ)(1+cot

2

θ)

=(1−cos

2

θ)(csc

2

θ)

=(sin

2

θ)(csc

2

θ)

=1

Hence answer is B