It 2+2 Cose 2 A & sec
5+1+cat? At It tanza
7+tan? A trotan
RMS atsec²
A cose²A = tan²A + cot²A + 2
Answers
Answered by
4
Answer:
LHS=cotA−12−sec2A
=1tanA−12−(1+tan2A)
=1−tanAtanA1−tan2A
=1−tanAtanA(1−tan2A)
=1−tanAtanA(1−tanA)(1+tanA)
=1tanA(1+tanA)
=cotA1+tanA
=RHS
Similar questions