Question

sin 765° का मान ज्ञात कीजिए
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Answer 1

Answer:

sin(765)=sin(720+45)=sin(2∗360+45)

Now the period of sin x is 360 degrees. After every integral multiples of 360 degree it will repeat its value.

So sin(2∗360+45)=sin45=(1/2).5

Answer 2

Answer:

do you mean sin 65°?????? if so.....

then,

=> sin ( 90°-25°)

=> cos 25° .......

HOPE IT HELPS YOU......