Trigonometric functions

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Last updated: November 5, 2020

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Hint	Answer
What is1/cosecx	sinx
What is 1/secx	cosx
What is 1/cotx	tanx
What is 1/sinx	cosecx
What is 1/cosx	secx
What is 1/ tanx	cotx
What is the pythagorean identity for sin and cos?	sin2x + cos2x = 1
For tan and sec?	1 + tan2 x = sec2 x
And for cosec and cot?	1 + cot2 x = cosec2 x
What is sinx/cosx?	tanx
What is cosx/sinx?	cotx
What is the half angle formula of sin2 x?	(1 - cos2x)/2
For cos2 x?	(1 + cos2x)/2
And for tan2 x?	(1 - cos2x)/(1 + cos2x)
What is f'(x) of sinx?	cosx
What is f'(x) of cosx?	- sinx
What is f'(x) of tanx?	sec2 x
What is f'(x) of cosecx?	- cosecxcotx
What is f'(x) of secx?	secxtanx
What is f'(x) of cotx?	- cosec2 x

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