Evaluate: cosec150sec750

cosec150sec750=cosec150sec(900−150)=cosec150cosec150=1

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Evaluate: {75^{0}}{cosec15^{0}}

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Evaluate: $\frac{sec 7 5 ^{0}}{cosec 1 5 ^{0}}$

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\frac{sec 7 5 ^{0}}{cosec 1 5 ^{0}}

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\frac{sec 7 5 ^{0}}{cosec 1 5 ^{0}} = \frac{sec ( 9 0 ^{0} - 1 5 ^{0} )}{cosec 1 5 ^{0}} = \frac{cosec 1 5 ^{0}}{cosec 1 5 ^{0}} = 1

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