How do you verify the identity #csc2theta=1/2secthetacsctheta#?

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Answer 1 · 2016-12-07T09:03:48

change to sines and simplify.

#csc2x=1/(sin2x)#

providing #sin2x!=0#

#csc2x=1/(sin2x)#

#=1/(2sinxcosx)#

#=1/2xx1/(sinx)xx1/cosx#

#=1/2xx(cscx)xxsecx#

#=1/2secxcscx#