Sin 15° Cos 15° - Cos 75° Sin76°
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Answered by
1
Sin 15 cos15 - cos75 sin 75
=Sin(90-75) cos(90-75) - cos75 sin 75
=cos75 sin 75 - cos75 sin 75
=0
=Sin(90-75) cos(90-75) - cos75 sin 75
=cos75 sin 75 - cos75 sin 75
=0
GeniusYH:
it's wrong
given in question is 76° not 75°
hmm yeah
exactly
Answered by
1
Hi friend,
Sin 15° Cos 15° = 0.25
Because Sin 15° = 0.259
Cos 15° = 0.966
Cos 75° Sin 76° = 0.251
Because Cos 75° = 0.259
Sin 76° = 0.970
Therefore,
Sin 15° Cos 15° - Cos 75° Sin76° = 0.25 - 0.251
= -0.001
≈ 0
Hope you find my answer useful and hope you mark my answer as brainliest !
Sin 15° Cos 15° = 0.25
Because Sin 15° = 0.259
Cos 15° = 0.966
Cos 75° Sin 76° = 0.251
Because Cos 75° = 0.259
Sin 76° = 0.970
Therefore,
Sin 15° Cos 15° - Cos 75° Sin76° = 0.25 - 0.251
= -0.001
≈ 0
Hope you find my answer useful and hope you mark my answer as brainliest !
There is a sin, cos table. Also there is an alternative method for this question. but for me, this method is easy
oh kk
ya
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