Question

If tan a + cot a is equals to 2, then find the value of tan square a + cot square a

Answer 1

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

HOPE  IT's HELP

Answer 2

Ur sol is:

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

Hope it hlpss uu..

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