Find sin 2x,cos 2x, tan 2x if sec x=-13\5 π\2
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1.If 6 tan A -5 = 0 find the value of( 3 Sin A - Cos A) / (5 Cos A + 9 sin A)
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2.CotA+cosecA=3,then find sinA=?
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3.If 13 sin A= 12 find sec A - tan A
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