Find the value of sin30°+ cos 30°.

Find the vaule.of tan 30°+tan 45°

Find the value of cot 45°.

How much possible solution.

Y= 6x+2 and sin 90°

Plote a graph 

7x+4y=1

4x+5y=2

Find the solution of the equation

2x+3y=6

5x+3y=8

Find the value of x and y if 

8x +3y=6

And 7x+ 6 y= 8

Find the solution of equtions 

2x+3y+4z=2

3x+2y+5z=3 

8x+4y+6z=4

Also find the rank of equtions.

Find the value of 2!+3!+4!.

Find the value of 

(9!+3!)/3!

Find the value of tanA. If A =135°