2 V Edit with WPS Office Mathematics Trigonometry If ABCD is a cyclic quadrilateral such that...
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2 V Edit with WPS Office Mathematics Trigonometry If ABCD is a cyclic quadrilateral such that 13cosA + 12 = 0 and 3tanB  4 = 0, then the quadratic equation whose roots are tanC and cosD is a) 15x + 60x  11 = 0 c) 11x2 + 60x  15 0 14. b) 60x + 11x  15 = 0 d) none of these 14.Ans. 15. In any AABC, which is not right angled, cos A cosecB cos ecc is a) constant b) less than 1 c) greater than 2 d) none of these 15.Ans. a sec 5° cos 40° 2 /2 sin100 2 sin35° sin5° 16.The value of Is 16.4 17. 4 cos 200V3 cot 200 %3D 1.4 2.2 3.4 4.1 17.4 18. If X = sin + sin + sin 12 12 12 Y = cos + cos + cos 12 12 12 X Y Y X Then 3.2 tan 26 4.  tan e 1. tan e 18.2 2. 2 tan 20 19. coss 16 + cos 16 + coss + cos 16 16 1.3/2 2.3/4 3.5/2 4.5/4 19.4 20. If m tan (0  30°) = n tan (0 + 120°) W Edit with WPS Office Mathematics Trigonometry 2( m+n) 2. m+n m+n mn 3. m+n then cos 20= 1. 4. 2( mn) mn mn 20.4 21. 2 V Edit with WPS Office Mathematics Trigonometry If ABCD is a cyclic quadrilateral such that 13cosA + 12 = 0 and 3tanB  4 = 0, then the quadratic equation whose roots are tanC and cosD is a) 15x + 60x  11 = 0 c) 11x2 + 60x  15 0 14. b) 60x + 11x  15 = 0 d) none of these 14.Ans. 15. In any AABC, which is not right angled, cos A cosecB cos ecc is a) constant b) less than 1 c) greater than 2 d) none of these 15.Ans. a sec 5° cos 40° 2 /2 sin100 2 sin35° sin5° 16.The value of Is 16.4 17. 4 cos 200V3 cot 200 %3D 1.4 2.2 3.4 4.1 17.4 18. If X = sin + sin + sin 12 12 12 Y = cos + cos + cos 12 12 12 X Y Y X Then 3.2 tan 26 4.  tan e 1. tan e 18.2 2. 2 tan 20 19. coss 16 + cos 16 + coss + cos 16 16 1.3/2 2.3/4 3.5/2 4.5/4 19.4 20. If m tan (0  30°) = n tan (0 + 120°) W Edit with WPS Office Mathematics Trigonometry 2( m+n) 2. m+n m+n mn 3. m+n then cos 20= 1. 4. 2( mn) mn mn 20.4 21.
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