11. Answer the following questions in a sentence each.
8x1 = 8
9.
How many solutions have the pair of linear equations 2x+3y-9=0 and
4x + 6y - 18 = 0?
uh
10. Write the standard form of a quadratic equation.
11. Find the value of tano - cot (90°-O).
12. In the figure ZB=90°, ZA = ZC and BC=10cm, then find the value of tan 45º.
A
rrecti
calle
B
10cm
13. Write the co-ordinates of the midpoint of the line segment joining the points
A(x, y) and B (x, y).
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Answer:
9) infinitly many solutions
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