Math, asked by nurula6422, 2 months ago

Express in terms of the trigonometry ratios of acute angles :
q) sin170° b) tan 300° c) Cos 200° d) sin(-50°) e) cosec (-53)°

Answers

Answered by MaheswariS
2

\underline{\textbf{Given:}}

\mathsf{(a)\;sin170^\circ}

\mathsf{(b)\;tan300^\circ}

\mathsf{(c)\;cos200^\circ}

\mathsf{(d)\;sin(-50^\circ)}

\mathsf{(e)\;cosec(-53^\circ)}

\underline{\textbf{To find:}}

\textsf{The given trigonometry ratios in terms of}

\textsf{acute angles}

\underline{\textbf{Solution:}}

\mathsf{(a)\;sin170^\circ}

\mathsf{=sin(180^\circ-10^\circ)}

\mathsf{=sin\;10^\circ}

\mathsf{(b)\;tan300^\circ}

\mathsf{=tan(270^\circ+30^\circ)}

\mathsf{=-cot\;30^\circ}

\mathsf{=-\sqrt{3}}

\mathsf{(c)\;cos200^\circ}

\mathsf{=cos(180^\circ+20^\circ)}

\mathsf{=-cos\;20^\circ}

\mathsf{(d)\;sin(-50^\circ)}

\mathsf{=-sin\,50^\circ}

\mathsf{(e)\;cosec(-53^\circ)}

\mathsf{=-cosec\,53^\circ}

\underline{\textbf{Find more:}}

Evaluate sin135°cos145°+cos135°sin145°

https://brainly.in/question/12391056  

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