Pls Answer Fast it is Attachment I will mark as Brainliest
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REFER TO THE ATTACHMENT ABOVE:-
(For urgent I solved it in Note book)........
@Vyomsingh
(a+b)^3=a^3+b^3+3a^2b+3ab^2
(a-b)^3=a^3-b^3-3a^2b+3ab^2
tan a=1/cota
or
cot a=1/tan a
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