Miscellaneous Geometry Doubts
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For how many values of x belongs to (-10pi, 10pi) does the equation sin^2021 (x) -sin^2 (x)=cos^2 (x) -cos^2021 (x)
Options are> a)32 b)36 c)39 d)40
Note- I am getting 19 values but in the solution it is given that the values possible are 39 and the solution considers cos(-pi)=1 which is not true.
Posted : 15/06/2021 4:20 pm
Same query
Posted : 15/06/2021 9:11 pm
Posted : 27/06/2021 12:52 am
