(tanA+cotA)^2 =?
actually in place of A u can use teta
Answers
Answered by
1
Answer:
If the question is given in terms of A, you shouldn't use theta. hope this helps you
Answered by
1
Answer:
cosec^2Asec^2A
Step-by-step explanation:
(a+b) whole squared is a square + b square+ 2 a b
so
(tanA+cotA)^2=
tan^2A+cot^2A+2tanAcotA
=> tan^2A+cot^2A+2
=>sec^2A-1+ cosec^2A-1+2
=>sec^2A+ cosec^2A-2+2
=>sec^2A+cosec^2A
=>1/cos^2A+1/sin^A
=>sin^2A+cos^2A/sin^Acos^2A
=>1/sin^2Acos^2A
=>cosec^2Asec^A
Similar questions