1.

The real solutions of the equation cos^(7)x+sin^(4)x=1 in (-pi,pi) are ………….

Answer»

`0,(PI)/(3),-(pi)/(3)`
`0,(pi)/(4),-(pi)/(4)`
`0,(pi)/(2),-(pi)/(2)`
`(pi)/(2),(pi)/(3),(pi)/(4)`

ANSWER :C


Discussion

No Comment Found