Question

secx-cosx/tanx=___? Explain pls

Answer 1

do u mean (secx-cosx)/(tanx) or secx-(cosx/tanx) ??

Answer 2

the first one. (secx-cosx)/tanx

Answer 3

how did it become sin*2x?

Answer 4

its a property. 1-cos^2x=sin^2x

Answer 5

pythagorean i believe

Answer 6

if it was just (sec(x)-cos(x))/tan(x) then it will be :
((1-cos^2(x))/cos(x))/tan(x)
=sin^2(x)/sin(x)
=sin(x)
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if it was sec(x)-(cos(x)/tan(x)) then :
sec(x)-(cos^2(x)/sin(x))
=sec(x)-((1-sin^2(x))/sin(x))
=sec(x)-cosec(x)-sin(x)

Answer 7

so duz it help?

Answer 8

why did you multiply sin^2x/cos^2 by cosx/sinx?

Answer 9

first of all, tanx=sinx/cosx. multiply by the reciprocal, cosx/sinx