Introduction To Trigonometry - Olympiad Level MCQ, Class 10 Mathematics - Class 10 MCQ

cot 36° cot 72° is equal to :

The value of cos² 15° – cos² 30° + cos² 45° – cos² 60° + cos² 75° is :

If x = sin² θ cos θ and y = cos² θ sin θ, then :

If x = secθ – tanθ and y = cosecθ + cotθ, then xy + 1 is equal to :

If 5 sinθ = 3, then secθ tanθ /secθ – tanθ is equal to :

The value of the expression 

Given that sin A=1/2 and cos B=1/√2 then the value of (A + B) is:

If m = tanθ + sinθ and n = tanθ – sinθ, then (m² – n²)² is equal to :

If x = a cos θ + b sin θ and y = a sin θ – b cos θ then a² + b² is equal to :

If  cosθ + sinθ + 1 = 0 and sinθ – cosθ – 1 = 0 then + is equal to :

ABC is a triangle, right angled at A. If the length of hypotenuse is 2 √2 times the length of perpendicular from A on the hypotenuse, the other angles of the triangle are :

If sin A + cos A = m and sin³A + cos³A = n, then

The quadratic equation whose roots are sin 18° and cos 36° is :

If cosθ + sectθ = 2, then the value of cos²θ + sec²θ is : 

If sin (A – B) = cos (A + B) =1/2, then the values of A and B lying between 0° and 90° are respectively:

If m² + m'² + 2mm' cosθ = 1, n² + n'² + 2nn' cos θ = 1, and mn + m'n' + (mn' + m'n) cos θ = 0, then m² + n² is equal to :