F(x) = sinx+cosx then find [f(x)+f(-x)]/f(x)-f(-x)
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sinx+cosx-sinx+cosx/sinx+cosx+sinx-cosx
=2cosx/2sinx
=2cotx
Medgha:
I'm sry
it's not 2cotx it is cotx
i asked it is or f(-x) = - sinx-cosx
it is right or not
no
cos(-x) =cosx
explain briefly
you solve and take photo
but how do I send it to you
u upload in answer by editing
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