Grade 12Differential Calculus
How should I solve this? I am unable to understand.
1 Answer
Arun
divide and multiply by 
1- cosA
you will get denominator as (1- cosA) out of the cube root sign
now put the formula of cosA in terms of sin(A/2)
you will get denominator in sin function now it will cancelled by the manipulation done in numerator and you will find your answer
hope it helps
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