Answers

2015-09-25T17:34:27+05:30
Tan A + cot A = 2
⇒ (tan A + cot A)² = 2²
⇒ tan² A + cot² A + 2 tan A cot A = 4
⇒ tan² A + cot² A + 2 × 1 = 4
⇒ tan² A + cot² A + 2  = 4
⇒ tan² A + cot² A = 4 - 2
⇒ tan² A + cot² A = 2

Answer is 2.
0
yaa bt why square??
because by squaring, i will get the answer
ok without squaring we can't get??
i don't know.. why don't you try?
I have tried bt I want to know the actual answer thank you