Question

If tan A +cot A=2 then find the value of tan²A+ cot ²A

Answer 1

Answer:

Step-by-step explanation: squaring the equation on bothsides gives u the answer

Answer 2

Answer:tana + cota =2

take square both sides

(tana + cota)² = 2²

tan²a + cot²a +2tana.cota =4

we Know,

tana =1/cota

so,

tan² a + cot²a +2 = 4

tan²a + cot² a = 4 -2=2