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15 questions
Is this one of the identities we can use to prove/simplify other identities?
tan2x + 1 = secx
Yes
No
(cos/sin)(sin/cos)
cos
sin
(sin/cos)(cos/sin)
(sinx /cosx) / ((cos x + sin x) / cos x))
(sinx) / (sin x)
(sinx) / (cosx)
(cosx) / ((cos x + sin x) / cos x))
Which of the following would be a step to prove the following identity?
(1/ sin x) - (1 / cos x)
(cos x - sin x) / ( sin x)
(cos x - sin x) / (cos x)
(1/ sin x cos x)
cot
(1 / cos)
tan
(1 / sin)
Verify the following
(1 + cosx) / (cos x)
(1) / (sin x)
(1 + sinx) / (sin x)
(sinx) / (sin x)
Verify the following:
cos²x
sin²x
cot²x
tan²x
What would be a step to prove the following:
(1)(1)
(1/tanx)(tanx/1)
(sinx/cosx)(cosx/sinx)
(cosx/sinx)(sinx/cosx)
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