Question

prove that (1+tan square A ) + (1+1/tan square A)= sin square A + cos square A / cos square A + sin square A + cos square A / sin square A​

Answer 1

Answer:

please give the clear question

Answer 2

(a²-b²)²+(a²+b²)²

=>Expanding both of them we get,

(a⁴+b⁴-2a²b²) + (a⁴+b⁴+2a²b²)

Hence, on opening the brackets...

It gives, 2(a⁴+b⁴)