Math, asked by dilipreddy80, 10 months ago

evaluation the following sin 30° + tan 45° - cosec 60° / cot 45° + cos 60°-sec 30°​

Answers

Answered by vashishtmanjeet1
1

Answer:i hope you know the values of trigonometry ratio for 0,30,45,60 and 90 degree. If you dont know than first read the table and try to memorize sin, cos, tan values.

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Answered by chaitragouda8296
3

To find :

 \frac{sin30°  + tan45° - cosec60°}{cot45° + cos60° - sec30°}  = ?

Solution :

trigonometric \:  \:  \:  \: ratios </u><u>:</u><u> </u><u>\:  \:  \: . \\  \\ </u><u>sin30</u><u>°</u><u> =  \frac{1}{2} \\  </u><u>tan45</u><u>°</u><u> = 1 \\ </u><u>cosec60</u><u>°</u><u> =  \frac{2}{ \sqrt{3} } \\  cot45</u><u>°</u><u> = 1 \\ </u><u>cos60</u><u>°</u><u> =  \frac{1}{2}  \\ </u><u>sec30</u><u>°</u><u> =  \frac{2}{ \sqrt{3} }

 =  \frac{sin30° + tan45° - cosec60°}{cot45° + cos60° - sec30°} \\  \\  =  \frac{ \frac{1}{2}  + 1 -  \frac{2}{ \sqrt{3} } }{1 +  \frac{1}{2}  -  \frac{2}{ \sqrt{3} } }  \\  \\  = 1

Hope it's helpful ......

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