# 1. To at Rot Rat - 1 sin 60° cos 30° + sin 30° cos 60° (1) 2 tan 450+ cos² 30° - sin 60° cas 450 un soc 30 + cosec 30° (v) sin 30° + tan 45° - cosec 60° soo 30° + cos 60° + cot 45° scor 60° + 4 sec 30° - tan* 45° sin 30° + cos² 30°

R Ronak bhalala

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R Rakesh Raki

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R Rakesh Raki

3

N neha

 Angle in degrees 0 30 45 60 90 sin 0 $\frac{1}{2}$ $\frac{1}{\sqrt{2}}$ $\frac{\sqrt{3}}{{2}}$ 1 cos 1 $\frac{\sqrt{3}}{{2}}$ $\frac{1}{\sqrt{2}}$ $\frac{1}{2}$ 0 tan 0 $\frac{1}{{\sqrt{3}}}$ 1 ${{\sqrt{3}}}$ not defined

$\\\mathrm{Cosecant\;\;\;\;\csc t=\frac{\text { hypotenuse }}{\text { opposite }}=\frac{1}{\sin t}}\\\mathrm{Secent\;\;\;\;\sec t=\frac{\text { hypotenuse }}{\text { adjacent }}=\frac{1}{\cos t}}\\\mathrm{Cotangent\;\;\;\;\cot t=\frac{\text { adjacent }}{\text { opposite }}=\frac{1}{\tan t}}$

Using the above table and relations the given question can be easily solved.

R Ravindra Pindel

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R Ravindra Pindel

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