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Rajan@2021
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Asked: 2021-04-07T10:30:05+05:30 In:

sin(a+b)=sina.cosb+cosa.sinb and cos(a-b)= cosA.cosB+sinA.sinB find the value of sin 75° and cos 15°

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This is the basic and conceptual question from trigonometric ratios in which we have to find sin 75° and cos 15° if sin(a+b)=sina.cosb+cosa.sinb and cos(a-b)= cosA.cosB+sinA.sinB.

RS Aggarwal, class 10, chapter 11, question no 27

cbse class 10rs aggarwaltrigonometric ratios
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    1. Guru
      sin(a+b)=sina.cosb+cosa.sinb and cos(a-b)= cosA.cosB+sinA.sinB find the value of sin 75° and cos 15°

      Hope it helps you.

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