Exercise problems XIII — task. Mathematics CBSE, Class 10.

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Evaluate the following:

1. \(\frac{cos \ 45^{\circ}}{sec \ 30^{\circ} + cosec \ 30^{\circ}} =\)

2. \(\frac{sin \ 30^{\circ} + tan \ 45^{\circ} - cosec \ 60^{\circ}}{sec \ 30^{\circ} + cos \ 60^{\circ} + cot \ 45^{\circ}} =\)

Answer variants:

\frac{43 - 24 \sqrt{3}}{11}

\frac{3 \sqrt{3} - \sqrt{6}}{8}

\frac{3 \sqrt{3} + \sqrt{6}}{8}

\frac{43 + 24 \sqrt{3}}{11}

Did you find an error?

20. Exercise problems XIII