Question

(1+tan square theta)(1-sin theta)(1+sintheta)=1​

Answer 1

Step-by-step explanation:

(1+tan^2A)(1-sinA) (1+sinA)=1

consider left hand side

1+tan^2A = sec^2A

so, (sec^2A)(1-sin^2A)

(sec^2A)(cos^2A)

(1/cos^2A)(cos^2A)

=1