maths P1 TWISTED QUESTION

[crash250]

guys..
what is the max and min value of COS^2 x and SIN^2 x AND at wht angle each of them occur

thanks alot


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[ahmed t]

maximum is 1 and minimum is 0 for both
cos^2X
minimum is at 90 and 270
maximum is at 0 180 360

sin^2X
minimum is at 0 180 360
maximum 90 270

 

[ahmed t]

these ar for the interval 0<X<360

 

[nisurju]

@ahmed t can you tell me how u did it?

 

[hassam]

yeah ahmed t is ryt.....u cnt hav -ve in ther cos its square function