21 question please solve this question for me
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ajaykumsr789:
plz solv
Answers
Answered by
1
cos195
cos(180+15)
-cos15
-(2+√3)/2
cos(180+15)
-cos15
-(2+√3)/2
Answered by
1
cos{180+(60-45)}
-cos(60-45)
-cos60-(-cos45)
-1/2+√3/2
-1+√3/2
is your answer
-cos(60-45)
-cos60-(-cos45)
-1/2+√3/2
-1+√3/2
is your answer
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