If ab=cd, then a+b/a−b=c+d/c−d.
Is the componendo and dividendo, so what's done in the answer (can we write a-b/a+b = c-d/c+d ( it remains the same !?)
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you can do also like this
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poojakumaresh26:
(1+cos)^2 you have written as (1+cos)(1-cos). it should have been 1 + cos^2 + 2 cos!!
where bro
see property
check your 3 rd step
it is correct
(a+b)^2= (a+b)(a+b)
i have written in this form
a^2 -b^2 = (a+b)(a-b).... just check once in the net..( this what you will find)
i have done this in 6th step
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here is your solution of compendo
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