1.

If 5costheta+3cos(theta+(pi)/(3))+"sin"^(2)(pi)/(3)-2=A then valueof A will be between ?

Answer»

`[-7,7]`
`[5(3)/(4),-8(1)/(4)]`
`[-5(3)/(4),+8(1)/(4)]`
`[-8(1)/(4),+5(3)/(4)]`

ANSWER :D


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