Sin a + cosec a= 2 then sin^2 a + cosec^2 a =?.only correct answer .otherwise reported.

Sin a + cosec a= 2 then sin^2 a + cosec^2 a =?.only correct answer .ot

1.	Sin a + cosec a= 2 then sin^2 a + cosec^2 a =?.only correct answer .otherwise reported.
Answer» SIN a + cosec a = 2both SIDE square (sin a + cosec a)^2 = (2)^2sin^2 a + cosec^2 a + 2sina COSECA = 4sin^2 a+ cosec^2 a = 4 - 2 sina* 1/sina = 4-2=2

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Sin a + cosec a= 2 then sin^2 a + cosec^2 a =?.only correct answer .otherwise reported.​

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Sin a + cosec a= 2 then sin^2 a + cosec^2 a =?.only correct answer .otherwise reported.