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