find the value of sin[50+Q]-cos[40-Q]
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hey ur answer is here
it is given that
sin(50+Q)-cos(40-Q)
you can write as
sin[90-(40-Q)]-cos(40-Q)
now
using the formul
cos(40-Q)-cos(40-Q)
hence answer will be 0
it is given that
sin(50+Q)-cos(40-Q)
you can write as
sin[90-(40-Q)]-cos(40-Q)
now
using the formul
cos(40-Q)-cos(40-Q)
hence answer will be 0
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