हिंदी

Without using tables, find the value of the following: tan 45 ° cosec 30 ° + sec 60 ° cot 45 ° − 5 sin 90 ° 2 cos 0 ° - Mathematics

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प्रश्न

Without using tables, find the value of the following: `(tan45°)/("cosec"30°) + (sec60°)/(cot45°) - (5sin90°)/(2cos0°)`

योग
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उत्तर

`(tan45°)/("cosec"30°) + (sec60°)/(cot45°) - (5sin90°)/(2cos0°)`

= `(1)/(2) + (2)/(1) - (5 xx 1)/(2 xx 1)`

= `(1)/(2) + (2)/(1) - (5)/(2)`

= `(1 + 4 - 5)/(2)`
= 0.

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अध्याय 27: Trigonometrical Ratios of Standard Angles - Exercise 27.1

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फ्रैंक Mathematics [English] Class 9 ICSE
अध्याय 27 Trigonometrical Ratios of Standard Angles
Exercise 27.1 | Q 2.3
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