Teaching Railway Teacher PRT 2025 Mock Test Series Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि sec x + tan x = 5 और cosec y - cot y = 1/3 है, तो (sec x + cosec y) - (tan x - cot y) का मान ज्ञात कीजिए।
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4.2
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3.2
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2.2
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3.1