1) sinA .cosB+ cosA .sinB= a) Sin(A-B) b) Sin(A+B) c) Cos(A+B) d) tan(A+B) 2) sinA .cosB- cosA .sinB= a) Sin(A-B) b) Sin(A+B) c) Cos(A+B) d) NONE OF THESE 3) 30 DEGREE=........ RADIAN a) ∏ /6 b) ∏ /3 c) ∏ /2 d) ∏ 4) Trigomometry comes from two greek word one is trigonon another is........... a) metric b) matriculation c) metron d) matrix 5) sin 1000 degree is...... a) +ve b) -ve c) cant say d) none of these 6) find the value of tan ⚻/8 a) √2+1 b) √2-1 c) √2 d) both a and c 7) if cos(∝+B) = 4/5 and sin(∝-B) = 5/13 , where ∝ lie between 0 and ⚻/4, then find that value of tan2∝. a) 56/33 b) 33/56 c) 3/2 d) 1 8) find the value of tan22°30´. a) 1/√2+1 b) 1/√3 c) √3+1 d) √3-2 9) which of the following is not correct? a) sin theta = -1/5 b) cos theta = 1 c) sec theta =1/2 d) tan theta = 20 10) the minimum value of 3cosx + 4sinx + 8 is a) 5 b) 9 c) 7 d) 3

Trigonometry

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