Question

plz it is of 3 marks question

its my humble request plz
I will mark them as brainlist ​

Answer 1

Step-by-step explanation:

L.H.S

tanA/(1+ tan^2A)^2 + cot A/(1+cot^2A)^2

= tanA/(sec^2A)^2 +cot A/(cosec^2A)^2

=tanA/(1/cos^2A)^2+cotA/(1/sin^2A)^2

=tanA(cos^2A)^2+cotA(sin^2A)^2

=sinA*cos^2A*cos^2A/cosA+cos*sin^2A*sin^2A/sinA

=sinA*cos^3A+ cosA*sin^3A

=sinA cosA (cos^2A+sin^2A)

= sinA cosA (1)

=sinA cosA