Question

Tan theta + cot theta = 5 ,find the value of tan 2 theta + cot 2 theta

Answer 1

Answer:

tan theta + cot theta = 5. ........ (1)

now

2 tan theta + 2 cot theta

2(tan theta + cot theta) ( take 2 as common)

now. from equation (1)

2( 5) = 10. answer