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Three functions are defined as follows:

f:x> cos x for the domain 0< (or equal to) x < (or equal to) 180

g:x> sin x for the domain 0< (or equal to) x < (or equal to) 90

h:x>tan x for the domain p< (or equal to) x < (or equal to) q

Find the range of f.

-1<(or equal to) x < (or equal to) 1 (correct?)

Given that the range of h is the same as the range of g, find a value of p and a value of q.

this is the one i dont quite understand, i got p = 0, q= 90, is that right?

if the domain is the same therefore the range is the same, yes?

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# Homework Help: Inequalities with trigonometric functions

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