SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

If the y-coordinate of a point is zero, then the point always lies ______

On plotting the points O(0, 0), A(3, 0), B(3, 4), C(0, 4) and joining OA, AB, BC and CO which of the following figure is obtained?

If P(−1, 1), Q(3, −4), R(1, −1), S(−2, −3) and T(−4, 4) are plotted on a graph paper, then the points in the fourth quadrant are __________

Find the value of the following:

`((cos 47^circ)/(sin 43^circ))^2 + ((sin 72^circ)/(cos 18^circ))^2 - 2cos^2 45^circ`

Find the value of the following:

`(cos 70^circ)/(sin 20^circ) + (cos 59^circ)/(sin31^circ) + cos theta/(sin(90^circ - theta))- 8cos^2 60^circ`

Find the value of the following:

tan 15° tan 30° tan 45° tan 60° tan 75°

Find the value of the following:

`cot theta/(tan(90^circ - theta)) + (cos(90^circ - theta) tantheta sec(90^circ - theta))/(sin(90^circ - theta)cot(90^circ - theta)"cosec"(90^circ - theta))`

Find the value of the following:

sin 21° 21′

If tan θ = cot 37°, then the value of θ is

The value of tan 72° tan 18° is

The value of 3 sin 70° sec 20° + 2 sin 49° sec 51° is

The value of cosec(70° + θ) – sec(20° − θ) + tan(65° + θ) – cot(25° − θ) is

The value of tan 1° tan 2° tan 3°…. tan 89° is

The area of a triangle is 5 sq. units. Two of its vertices are (2, 1) and (3, −2). The third vertex is (x, y) where y = x + 3. Find the coordinates of the third vertex.

In the figure, AB is parallel to CD, find x

In the figure, AB is parallel to CD, find x

The angles of a triangle are in the ratio 1 : 2 : 3, find the measure of each angle of the triangle

The points (−5, 2) and (2, −5) lie in the ________

If Q₁, Q₂, Q₃, Q₄ are the quadrants in a Cartesian plane then Q₂ ∩ Q₃ is ___________

Using Heron’s formula, find the area of a triangle whose sides are 10 cm, 24 cm, 26 cm