1.

\frac \operatorname sin 30 ^ \circ %2B \operatorname tan 45 ^ \circ - \operatorname cosec 60 ^ \circ \operatorname sec 30 ^ \circ %2B \operatorname cos 60 ^ \circ %2B \operatorname cot 45 ^ \circ

Answer»

(1/2 + 1 - 2/√3)/(2/√3 + 1/2 + 1)=(3/2 - 2/√3)/(3/2 + 2/√3)=(3√3 - 4)/(3√3 + 4)



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