10 1. A quadratic equation whose roots are tan 22- and cot 22 is 1) x2...
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10 1. A quadratic equation whose roots are tan 22- and cot 22 is 1) x2 -2/2x +1= 0 2) 2x2 -V2x+1= 0 3) x2 +2/2x-1= 0 4) x2 -2 2x-1=0 sin x 2. sin 8. 1) 8cos 8 2) 8cos sin sin, 3) 8 sin sin- sin 4 4) 8sin sin cos 4 8. 4 3. The roots of the equation 4x -2/5x+1=0 are 1) sin 36°, sin18° 2) sin18°,cos36° 3) sin 36°,cos180 4) cos18°,cos360 4. 1) cos- 32 2)2 cos- 32 3) 2 cos- 64 4) cos 64 5. V3cosec20° - sec 20° = 1) 2 2) 3 3) 1 njeS (S 4) 4 sine + sin 20 6. 1+ cos0+ cos 20 1) tan- 2) cot 3) tane 4) cot 0 7. cos 9° - sin 9° = V5-15 1) 5+ 5 2) 4 4) 5-V5 V1+sin 24+v1– sin 24 Vi+ sin 24 - V1- sin 24 8. Find the value of When tan A <l and | A| is acute. 1) cotA 2) sinA 3) cosA 4) secA 9. 4sin 270 = 1) V5+V5 + 3-5 2) v5 - 5 + V3+5 3) V5+ V5 -Va-V5 4) V5+ V5 + V3+ V5 10. 4cos36° +cot 7- 1) 1+2+v3+VA+ V5 + v6 3) 1-2+V3-VA+ V3 -J6 2) 1+ 2 - V3 + V4-5+ V6 4) 1+2-3+ V4+ 5-V6 ELITE SEDIEefor Sri Chaitanya Ir ICON Students 10 1. A quadratic equation whose roots are tan 22- and cot 22 is 1) x2 -2/2x +1= 0 2) 2x2 -V2x+1= 0 3) x2 +2/2x-1= 0 4) x2 -2 2x-1=0 sin x 2. sin 8. 1) 8cos 8 2) 8cos sin sin, 3) 8 sin sin- sin 4 4) 8sin sin cos 4 8. 4 3. The roots of the equation 4x -2/5x+1=0 are 1) sin 36°, sin18° 2) sin18°,cos36° 3) sin 36°,cos180 4) cos18°,cos360 4. 1) cos- 32 2)2 cos- 32 3) 2 cos- 64 4) cos 64 5. V3cosec20° - sec 20° = 1) 2 2) 3 3) 1 njeS (S 4) 4 sine + sin 20 6. 1+ cos0+ cos 20 1) tan- 2) cot 3) tane 4) cot 0 7. cos 9° - sin 9° = V5-15 1) 5+ 5 2) 4 4) 5-V5 V1+sin 24+v1– sin 24 Vi+ sin 24 - V1- sin 24 8. Find the value of When tan A <l and | A| is acute. 1) cotA 2) sinA 3) cosA 4) secA 9. 4sin 270 = 1) V5+V5 + 3-5 2) v5 - 5 + V3+5 3) V5+ V5 -Va-V5 4) V5+ V5 + V3+ V5 10. 4cos36° +cot 7- 1) 1+2+v3+VA+ V5 + v6 3) 1-2+V3-VA+ V3 -J6 2) 1+ 2 - V3 + V4-5+ V6 4) 1+2-3+ V4+ 5-V6 ELITE SEDIEefor Sri Chaitanya Ir ICON Students
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