cot ^4A+cot^2A =3 , cosec^4A - cosec^2A =?
Answers
Answered by
0
Answer:
cot^4 A+cot^2 A=2
(cosec^2 A-1)^2+(cosec^2-1)=2
cosec^4 A-2cosec^2 A+1+cosec^2 A-1=2
cosec^4 A-cosec^2 A=2
Similar questions