Cos(alpha+beta)=0
then........Sin(alpha+beta)=?
a)cos beta b)cos 2beta
c)sin alpha d)sin2alpha(PROVIDE ANSWER WITH SOLUTION)
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awesome ........ genus questions......
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cos(alpha+beta)=o
cos(alpha+beta)=cos90
alpha+beta=90
alpha=90-beta
now, sin(90-beta-beta)=sin(90-2beta)
cos2beta....... (sin(90-theetha)=costheetha)
may this help u...... Plzzzsss check if I am wrong or correct..
cos(alpha+beta)=cos90
alpha+beta=90
alpha=90-beta
now, sin(90-beta-beta)=sin(90-2beta)
cos2beta....... (sin(90-theetha)=costheetha)
may this help u...... Plzzzsss check if I am wrong or correct..
MEHAK1572:
instead of sin(α+β),it should be sin(α-β)
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