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प्रश्न
Evaluate the following: `(tan42°)/(cot48°) + (cos33°)/(sin57°)`
बेरीज
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उत्तर
`(tan42°)/(cot48°) + (cos33°)/(sin57°)`
= `(tan(90° - 48°))/(cot48°) - (cos(90° - 57°))/(sin57°)`
= `(cot48°)/(cot48°) - (sin57°)/(sin57°)`
= 1 - 1
= 0.
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Trigonometric Equation Problem and Solution
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