1加SINX/COSX=-0.5,則COSX/(SINX-1)的值
熱心網(wǎng)友
(1+sinX)/cosX=-1/2 (1)cosX/(sinX-1)=M (2)(1)/(2) [1-(sinX)^2]/(cosX)^2 =-1/(2M)-1=-1/(2M) == M = 1/2所以cosX/(sinX-1) = 1/2
1加SINX/COSX=-0.5,則COSX/(SINX-1)的值
(1+sinX)/cosX=-1/2 (1)cosX/(sinX-1)=M (2)(1)/(2) [1-(sinX)^2]/(cosX)^2 =-1/(2M)-1=-1/(2M) == M = 1/2所以cosX/(sinX-1) = 1/2