Question

If tan15º = 2- √3, then the value of cot²75° is?​

Answer 1

heya

here is your answer

tan15=cot75......... complementary angles

cot75=2-√3

cot^2 75 = 4 - 4√3 +3 = 7 - 4√3

hope it helps you

Answer 2

Answer:

7-4√3

Step-by-step explanation:

tan15 can be also written as cot(90-15)

=>cot(90-15)=2-√3

=>cot75= 2-√3

they asked the value of cot2 72

=> cot2 75= (2-√3)2

=> 4-4√3+3 = 7-4√3