Math, asked by sandykumar22, 10 months ago

sin5x-sin3x/cos5x+cos3x=?


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Answers

Answered by kaushik05
22

hope this helps you ☺️☺️☺️

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Answered by ds2113141
10

Answer:

tanx

Step-by-step explanation:

sin5X -sin3X /cos5x+cos3x= 2cos(5X+3X )/2×sin (5X-3X)/2÷ 2cos(5X+3X)/2 ×cos(5X-3X)/2       ⇒(By the formula ) [sina -sinb =2cos( a+b/2) sin(a-b/2)]       and [ cosa+cosb =2cos(a+b/2) cos(a-b/2)]                                                               ⇒2cos4x sinx ÷2cos4x cosx          =tanx .

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