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Trigonometry
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OpenStudy (anonymous):
Verify each identity: (secx-tanx)^2=(1-sinx)/(1+sinx)
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OpenStudy (anonymous):
ok... one sec
OpenStudy (anonymous):
What do you think the first step is?
OpenStudy (anonymous):
to foil out the left side?
OpenStudy (anonymous):
Multiply the top and bottom by the conjugate of the bottom:
OpenStudy (anonymous):
Use Pythagorean identity
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OpenStudy (anonymous):
Split it up
OpenStudy (anonymous):
for the left or right side?
OpenStudy (anonymous):
right side
OpenStudy (anonymous):
okie dokie :)
OpenStudy (anonymous):
would the conjugate be: (1+sinx)/(1-sinx)?
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OpenStudy (anonymous):
well i gtg, but good luck
OpenStudy (anonymous):
ok thanks :)
OpenStudy (anonymous):
@alessandro96
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