Content Level-1 Problem-166 Click for video
| Steps | Problem | Solution |
|---|---|---|
1 |
Determine the value of an expression,if z=3/2 |
\$ (z^2)-1 \$ |
2 |
Given expression |
\$ (z^2)-1 \$ |
3 |
By using the formula \$ (a^2 - b^2)=(a+b)(a-b) \$ we write |
\$ (z+1)(z-1) \$ |
4 |
Substitute the z value in expression |
\$ (3/2+1)(3/2-1) \$ |
5 |
After simplification we get |
\$ 5/2 × 1/2 \$ |
6 |
After simplification we get |
\$ 5/4 \$ |
7 |
Hence the solution of the given expression is |
\$ 5/4 \$ |
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