what is the value of cos 48 degree-sin 42 degree
Answers
Answered by
1
Hey... I think this can be ur answer!!
Cos2 67 - sin2 23
=cos2 (90-23) - sin2 23
=sin2 23 - sin2 23
=0
So the value is 0
Hope it helps you dear ☺️☺️
Cos2 67 - sin2 23
=cos2 (90-23) - sin2 23
=sin2 23 - sin2 23
=0
So the value is 0
Hope it helps you dear ☺️☺️
Answered by
6
cos 48-sin 42
=cos 48 - sin(90-48)
=cos48-cos 48 (as sin(90-A)=cosA)
=0
hope it helpzzz u ☺️☺️
=cos 48 - sin(90-48)
=cos48-cos 48 (as sin(90-A)=cosA)
=0
hope it helpzzz u ☺️☺️
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