Sin ^ 2thetacosthetacsc ^ 3thetasectheta、解決策は何ですか?

Sin ^ 2thetacosthetacsc ^ 3thetasectheta、解決策は何ですか?
Anonim

回答:

#csctheta#

説明:

#sectheta = 1 / costheta#

#csctheta = 1 / sintheta#

#sin ^ 2thetacosthetacsc ^ 3 thetasectheta = sin ^ 2thetacostheta1 /(sin ^ 3theta)1 / costheta#

#costhetaxx1 / costheta = 1#

#sin ^ 2thetaxx1 / sin ^ 3theta = 1 / sintheta#

#1 / sinthetaxx1 = 1 / sintheta = csctheta#