√sec²a+cosec²b=tan a+cot a prove this sum
Snaky:
I think the question is wrong...plz correct it....!
i suppose its cosec2 a
Answers
Answered by
2
sec²a=1+tan²a
cosec²a=1+cot²a
√sec²a+cosec²a=√1+tan²a+1+cot²a=√(tan a +cot a)^2
=tan a +cot a
since
(tan a + cot a)^2=tan²a+2+cot²a
cosec²a=1+cot²a
√sec²a+cosec²a=√1+tan²a+1+cot²a=√(tan a +cot a)^2
=tan a +cot a
since
(tan a + cot a)^2=tan²a+2+cot²a
Similar questions