1.

If Delta ABC

Answer»

`sin A sin B sin C le (3 sqrt3)/( 8)`
`sin^(2) A + sin^(2) B + sin^(2) C le (9)/(4)`
`sinA sinB sinC` is always positive
`sin^(2) A + sin^(2) B le 1 + COS C`

Answer :A::B::C::D


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