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The values of sin105° is equal to
  • a)
    cos15°
  • b)
    sin60°
  • c)
    sin45°
  • d)
    cos45°
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The values of sin105° is equal toa)cos15°b)sin60°c)sin45&d...
Brov do lyk this.sin 105 = sin(90+15).use sin(A+B)= sinAcosB + cosAsinB.so sin(90+15)= sin90cos15 + cos90sin15.as cos90= 0.and sin90= 1.we get sin105=cos15. hence proved
Community Answer
The values of sin105° is equal toa)cos15°b)sin60°c)sin45&d...
Sin 105=sin(90+15)=cos15.. ...option A
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The values of sin105° is equal toa)cos15°b)sin60°c)sin45°d)cos45°Correct answer is option 'A'. Can you explain this answer?
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