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Mathematics 20 Online
OpenStudy (anonymous):

PROVING IDENTITIES!!

OpenStudy (anonymous):

NO!

OpenStudy (anonymous):

are you talking about sin cos and tan identities?

OpenStudy (anonymous):

\[\frac{ \tan x }{ \sec x -1 } = \frac{ \sec x + 1 }{ \tan x }\]

OpenStudy (anonymous):

what would you like to do with this?

OpenStudy (anonymous):

prove it, left side = right side

OpenStudy (mertsj):

Multiply numerator and denominator of left side by sec x + 1

zepdrix (zepdrix):

This is a nice easy one, should only take about 3 steps. Did you follow merts step? What does that give you?

OpenStudy (anonymous):

thank you.....i just needed a start!

OpenStudy (mertsj):

Good for you.

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