1.

Ifsin 18^(@)=(sqrt(5)-1)/(4) , thensin 81^(@)=

Answer»

`(SQRT(5)+1)/(4sqrt(2))+(sqrt(10-2sqrt(5)))/(4sqrt(2))`
`(sqrt(5)+1)/(4 sqrt(2))/(sqrt(10+2sqrt5))/(4sqrt(2))`
`(sqrt(5)-1)/(4sqrt(2))+(sqrt(10+2sqrt(5)))/(4sqrt(2))`
`(sqrt(5)-1)/(4sqrt(2))+(sqrt(10-2sqrt(5)))/(4sqrt(2))`

Answer :A


Discussion

No Comment Found

Related InterviewSolutions