Related InterviewSolutions

• If `0 ltA lt(pi//2)and0 ltB lt(pi//2),` then angle `(A-B)` lies in…….. Quadrant.A. FirstB. SecondC. ThirdD. Fourth
• `tan20^@+tan25^@+tan20^@.tan25^@=....`A. `-sqrt2`B. 1C. `1//sqrt2`D. -1
• If `sectheta=-13//5,` where `90^(@) lt theta lt 180^(@),`, then : `sintheta=…….`A. `109//191`B. `120//199`C. `-120//169`D. `-119//169`
• The value of `(cot54^(@))/(tan36^(@))+(tan20^(@))/(cot70^(@))` isA. 1B. 2C. 0D. 3
• Statement I : `sin^2pi/8+sin^2(3pi)/8+sin^2(5pi)/8+sin^2(7pi)/8=2` Statement II `cos^2pi/8+cos^2(3pi)/8+cos^2(5pi)/8+cos^2(7pi/8)=2` Statement III: `sin^2pi/8+sin^(3pi)/8+sin^2(5pi)/8sin^2(7pi)/8=3/2`A. 1B. 2C. -1D. 0
• Find the value of `sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+.............+sin^(2)90^(@)`.A. `6(1)/(2)`B. `7(1)/(2)`C. `8(1)/(2)`D. `9(1)/(2)`
• If `sinA+sinB+sinC=(3sqrt3)/(2).` then: `DeltaABC` is (a) isosceles (b) right angled (c) equilateral (d) obtuse angledA. isoscelesB. right-angledC. equilateralD. obtuse-angled
• If `sin.alpha/2+cos.alpha/2=1.4,` then: `sinalpha=`A. `50/47`B. `47/50`C. `24/25`D. `25/24`
• If, in a `DeltaABC,tanA=1andtanB=2,` then: `tanC=` (a) 1 (b) 2 (c) 3 (d) 4A. 1B. 2C. 3D. 4
• If `cos(A-B)=3/5and tan A tanB=2,` thenA. `cosA.cosB=1/5`B. `cosA.cosB=-1/5`C. `sinA.sinB=-6/5`D. `sinA.sinB=-1/5`