Question

please solve 9 10 and 1 ( b ) number

Answer 1

dont understand this question write clear ly

Answer 2

1 (b) √2tanФ=√6

tanФ=√6\√2

tanФ=√3*√2\√2

tanФ=√3

∴ tan60°=√3

⇒Ф=60°

∴sinФ+√3cosФ=sin60°+√3cos60°

⇒√3\2+√3(1\2)

⇒√3\2+√3\2

⇒2√3\2

⇒√3

10(b). 4cosec40\sec50+6tan62\cot28-7cos25\sin65

4sec50\sec50+6cot28\cot28-7sin65\sin65-----------(by identity)

4+6+-7

3

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