what is the maximum value of 3-7cos5x
bulu15:
Dear friend we know that cos180 is-1 so in case cos5x if x is taken 36 then it is cos180 so equn will be 3-7(-1) so the ans will be 7+3=10. So the maximum value is 10
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6
Answer is 10
cos 5x= -1
3 - 7*-1 = 3+7 = 10.
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The maximum value of 3 - 7 cos 5 x is 10.
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