The rate of change of the function fx 9 sec x 9 cos x is...
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Calculus
The rate of change of the function fx 9 sec x 9 cos x is given by the expression 9 sec x tan x 9 sin x Show that this expression can also be written as 9 sin x tan x Use the Reciprocal and Pythagore identities and then simplify 9 sec x tan x 9 sin x 9 sin x cos x 9 sin x
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