Single answer type questions 1. The value of sin 47+sin 61 -sin11-sin 25 is 1) sin7...
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Single answer type questions 1. The value of sin 47°+sin 61° -sin11-sin 25° is 1) sin7° 2) cos 70 A 3) sin14° 4) cos 140 2TC 2. sin- +sin +sin 7 1) 7/2 2) 7/2 3) -V7/2 4)-7/2 3. The value of 3+cot 76° cot 16° cot 76° + cot 16° is 1) tan 440 2) cot 46° 3) tan2° 4) tan 46° The smallest positive value of x (in degrees) for which tan(x+100)=tan(x+50"). tanx. tan(x-50° 1) 30° 2) 45° Se003) 550 If x sin a+ sinß, y=cos c + cosß then tang+ tanB= 4) 150 5. 8xy 4xy (v2 -x?)+(x²+y²)(x² +y² -2) 1) 2(2 -x?)+(x²+y?)(x? +y² -2) - 2) 2) 8xy 3) (x² +y?)(x2 +y² – 2) 4) 4xy sin0, +sin0, +.. +sin 0, cós 0, + cos0, +..+ cose, 6. If 6,,0,,60,..0, are in A.P. then 0,+0 3) tan 2. 1) 0 2) tan(0, +0,) 4) tan ate cos x If cos(x+0) cos(x+20) cos(x+30) is equal to 7. then b+d 1) ald 2) cld 3) blc 4) dla Let f(n) = 2 cos nx, Vne N, then f(1)f(n+1)-f(n) is equal to 3) f(n+1)f(2) 8. 1) f(n+3) 2) f(n+2) 4) f(n+2)f(2) ros(B cos(a+0) cos(B+0) cos(y+0) sin(B+y) sin(Y+) in(a+B) =k. Then k equals 9. If a, B, y do not differ by a multiple of t and if 3) 0 4) ±1 1) +2 2) t Single answer type questions 1. The value of sin 47°+sin 61° -sin11-sin 25° is 1) sin7° 2) cos 70 A 3) sin14° 4) cos 140 2TC 2. sin- +sin +sin 7 1) 7/2 2) 7/2 3) -V7/2 4)-7/2 3. The value of 3+cot 76° cot 16° cot 76° + cot 16° is 1) tan 440 2) cot 46° 3) tan2° 4) tan 46° The smallest positive value of x (in degrees) for which tan(x+100)=tan(x+50"). tanx. tan(x-50° 1) 30° 2) 45° Se003) 550 If x sin a+ sinß, y=cos c + cosß then tang+ tanB= 4) 150 5. 8xy 4xy (v2 -x?)+(x²+y²)(x² +y² -2) 1) 2(2 -x?)+(x²+y?)(x? +y² -2) - 2) 2) 8xy 3) (x² +y?)(x2 +y² – 2) 4) 4xy sin0, +sin0, +.. +sin 0, cós 0, + cos0, +..+ cose, 6. If 6,,0,,60,..0, are in A.P. then 0,+0 3) tan 2. 1) 0 2) tan(0, +0,) 4) tan ate cos x If cos(x+0) cos(x+20) cos(x+30) is equal to 7. then b+d 1) ald 2) cld 3) blc 4) dla Let f(n) = 2 cos nx, Vne N, then f(1)f(n+1)-f(n) is equal to 3) f(n+1)f(2) 8. 1) f(n+3) 2) f(n+2) 4) f(n+2)f(2) ros(B cos(a+0) cos(B+0) cos(y+0) sin(B+y) sin(Y+) in(a+B) =k. Then k equals 9. If a, B, y do not differ by a multiple of t and if 3) 0 4) ±1 1) +2 2) t
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