Math, asked by sarthak2625, 5 hours ago

limit x-->0 ,7x+sin3x/5xcosx+sin5x​

Answers

Answered by ashish2006april
0

Answer:

LHS= (cos7x+cos5x)+(cos9x+cos3x (sin7x+sin5x)+(sin9x+sin3x) = 2cos( 27x+5x)cos( 27x−5x+2cos(29x+3x)cos(29x−3x)2sin(27x+5x)cos(27x−5x)+2sin(29x+3x)cos(29x−3x)=cos6xcosx+cos6xcos3xsin6xcosx+sin6xcos3x=tan6x=RHS

Step-by-step explanation:

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