Math, asked by Rahi39, 1 year ago

if cosecA + cotA = p, evaluate (p^2 -1)/(p^2+1)

Answers

Answered by zeborg
16
Hope this helps.
Ask for any doubts at any step, and please notify if you find any calculation mistake.
Attachments:

Rahi39: One doubt.... how is cosecA + cotA = 1+cosA/sinA ?
zeborg: cosecA = 1/sinA, cotA = cosA/sinA, adding them we get the result that you asked for.
Rahi39: Oh.... I for got cot = cos/sin
Answered by Ankit1408
6
hello friends......

we have given that
cosecA + cotA = p

we have to evaluate
(p²-1) /(p²+1) = ?

solution :-
as shown in attachment ..

formula used
cosec²x -cot²x = 1


hence
(p²-1) /(p²+1) = cos A answer

⭐⭐ hope it helps ⭐⭐
Attachments:

Ankit1408: thanks for marking
Rahi39: Ur welcome
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