Recently Active Trignometry Questions

Pls Solve And EXPLAIN these to me 1)The equation secθ =-0.7 has a solution in the second and third quadrant.(True/False) 2)Find the maximum value of |sinα|-cosβ 3)The minimum value of sec2 θ +cos2 θ is 2 (True/false) ...

how can we prove that (1+tan3A)/(1-tan3A) = { (1+tanA)/(1-tanA) }3?? ...

Q If α and β are the roots of the equation atanθ +b secθ=c find the value of tan(α+β) and cos(α+β) ...

IF (3,2,-4) AND (9,8,-10) AND (λ,4,-6) are collinear, find the value of λ ...

If tan A=1/7 and sin B=1/ 10 where 0<A ,B<pi/2 then 2B equals?? ...

(2 3 +4)sinx+4cosx lies in the interval??? (a)(-4,4) (b)(-2 5 ,2 5 ) (c)(-2+ 5 ,2+ 5 ) (d)(-2(2+ 5 ),2(2+ 5 )) ...

If 3pi/4<A<pi then 2cotA+cosec2A is equal to ??? ...

x^{2}-y^{2}-4x-2y+2=0 represents a] a pair of straight lines b] ellipse c]hyperbola centred at(2,-1) d]circle centred at(2,1) ...

in [0,1] , x^{2}(1-x)^{6} attains maximum value at which point? ...

if z=x^{2}y +3xy^{4} and x=sin2t \; , y=cost find \frac{dz}{dt}\; at \; t=0 ...

if a(x) is the solution of \frac{dz}{dx}-\frac{2}{x}z=\frac{2}{3}x^{4} and z(1)=2/9. then find the value of z(-1) ...

if x^{2}-2xcos\theta +1=0 find the value of x^{n}(2cosn\theta -x^{n}) where n is a natural number ...

ax+by+ c can be a normal to xy=1 if a] a>0 , b<0 b]a<0 , b>0 c] a and b are of opposite signs d] a=0 , b=0 ...

\huge THIS\; ONE\; I \; DID\; NOT \; GET \huge FIND THE PARTICULAR INTEGRAL OF y^{''}-y^{'}-2y=sin3x ...

if e and d are the eccentricities of a hyperbola and its conjugate hyperbola , then \frac{1}{e^{2}}+\frac{1}{d^{2}}=? ...

I=\int_{0}^{\frac{\pi }{2}}{\frac{(acosx+bsinx)}{sinx+cosx}} find the value of I ...

if p and q be the perpendiculars from the angular points A and B on any line passing through the vertex C of the triangle ABC, then prove that a2p2+ b2q2 - 2abpq cos C = a2b2 Sin2 C ...

if f(x)=\int_{0}^{x}{e^{-t^{2}}t^{3}}dt find f(1) ...

f(x)=5x^{3}-30x^{2}-75x+3 find the interval to which x belongs such that f(x) is decreasing for all real x. ...

if -1<x<0 den sin-1 x =? a dice is rolled 4 times d probability of getting a larger no dan d previous no each time is? ...

........................................................................................... Nice name but actually i have a question .. Three circles touch each other externally. The tangents at the points of contact meet at ...

Find all the solutions of sin5x+cos3x=1 ...

If the median of ΔABC through A is perpendicular to AB then, a)tanA+tanB=0 b)2tanA+tanB=0 c)tanA+2tanB=0 d)NOT ...

If the line joining ortho centre and circum centre of triangle ABC is parallel to AC ,then tanA,tanB,tanC are in A. AP B. GP C. HP D. None ...

Q 1. In a triangle ABC , the in centre is the middle point of the median AD , then cos A has the value A. 7/8 B. 1/4 C. 1/3 D. 1/√2 ...

wen appylying formulae lyk tan inv + tan invers = tan -1(x+y/1-xy) can sum1 tell me if ther is a genreal rule for addtn/subtctn of Î wen negative n all dat........ OR IT HAS TO BE REMEMBERED CASE to CASE basiss?? ...

Q)A person standing on the bank of a river observes that angle of elevation of the top of the tree on the opposite bank of the river is 60° and when he retires 40m away from the tree the angle of elevation becomes 30°.The b ...

I am making a calculation mistake in this one.....[2][2] Eqn1: cot^{-1}(\frac{y}{\sqrt{1-x^{2}-y^{2}}})=2tan^{-1}\sqrt{\frac{3-4x^{2}}{4x^{2}}}-tan^{-1}\sqrt{\frac{3-4x^{2}}{x^{2}}} Eqn2: sin^{-1}\frac{ax}{c}+sin^{-1}\frac{bx ...

F(x) = sin x + cos x, the maximum value of F(x) is (a) 1 (b)√ 2 (c) √3 (d) 2 ...

tanθ.tanφ= (p-q)/p+q) ,show that (p-qcos2θ)(p-qcos2φ) is independent of φ and θ ...