Q28 of 805 Page 427

If sec θ + tan θ = m, prove that

Given sec θ + tan θ = m

So we can write

Squaring both sides we get

Since cos² θ = 1- sin² θ

⇒

Applying Componendo & Dividendo i.e.

is equivalent to

we get

Hence Proved

Prove that:

Evaluate:

Draw the graph of the following equations: 3x + y- 11 = 0 and x-y- 1 = 0.

Shade the region bounded by these lines and the y-axis.

The table given below shows the frequency distribution of the scores obtained by 200 candidates in a BCA entrance examination:

Draw cumulative frequency curve using 'less than series'.