Grade 11Differential Calculus
Show that Ltx->0 sin(a+bx)-sin(a-bx)/x=2bcosa........
Show that Ltx->0 sin(a+bx)-sin(a-bx)/x=2bcosa........
1 Answer
Arun
Dear Pranav
Use sin C - sin D = 2 cos (C+D)/2 sin (C-D)/2
You will surely get your answer.
Regards
Arun (askIITians forum expert)
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