Prove that: = (cosecθ - cotθ)2.

Taking LHSMultiplying and dividing by (1 - cos θ)As sin2θ + cos2θ = 1Hence Proved.

Q32 of 40 Page 422

Prove that: = (cosecθ - cotθ)².

Taking LHS

Multiplying and dividing by (1 - cos θ)

As sin²θ + cos²θ = 1

Hence Proved.

The following table gives the yield per hectare of wheat of 100 farms of a village:

Change the above distribution to 'more than type' distribution and draw its ogive.

Solve for x and y:

ax + by-a + b = 0, bx-ay-a-b = O.

Δ ABC is right angled at B and D is the midpoint of BC.

Prove that: AC² = (4AD² - 3AB²).

Find the mean, mode and median of the following data: