The value of _ x 0 ( (3 x+a)-3 (2 x+a)+3 (x+a)- a x^ 3 ) :
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
The value of \(\lim _{x \rightarrow 0}\left(\frac{\sin (3 x+a)-3 \sin (2 x+a)+3 \sin (x+a)-\sin a}{x^{3}}\right)\) :
- \(\cos 2\)
- \(-\cos a\)
- \(\sin a\)
- \(-\sin a\)
Answer
(D) - a
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