Question

sin^2a+sec^2a+cos^2a+cosec^2a=3+tan^2a+cot^2a
Prove
plz i need it urgently​

Answer 1

Answer:

sin²a+sec²a+cos²a+cosec²a

=(sin²a+cos²a)+1+tan²a+1+cot²a

=1+2+tan²a+cot²a

=3+tan²a+cot²a