The value of cot (675º) is
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tan 225º cot 405º + tan 765º cot 675º =
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The value of sin 10 cos 20 tan 30 cot 40 sec 50 cosec 60 is
A quadratic equation whose roots are
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Which of the following number (s) is/are rational-
The angle subtended at the centre of the circle of diameter 50 cm by an arc of 11 cm, is (in degree)
sec (270º– A ) sec (90º –A)- tan (270º – A) tan (90° + A) =
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