MATHS PROBLEM TRIGNOMETRY
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Here
Sin27 sin63 - cos27 cos63
= - ( cos27 cos63 - Sin27 sin63)
= - (cos (27+63))
= - (cos 90)
= 0
Sin27 sin63 - cos27 cos63
= - ( cos27 cos63 - Sin27 sin63)
= - (cos (27+63))
= - (cos 90)
= 0
JOBBY1:
BRO THEN SOLVE SIN
hey this is the soln of the que. and tell me what u can't understand
Answered by
1
Given
Sin27.Sin63-Cos63.Cos27
We can write the sin as sin(90-27) we get cos63 ..... And we can write cos as cos(90-63) then we get sin27 .......
Therefore cos63.sin63-sin63.cos63 then the answer will be 0
Sin27.Sin63-Cos63.Cos27
We can write the sin as sin(90-27) we get cos63 ..... And we can write cos as cos(90-63) then we get sin27 .......
Therefore cos63.sin63-sin63.cos63 then the answer will be 0
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