EXAMPLE 37 Without expanding prove ...
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EXAMPLE 37 Without expanding prove that (a + bx c+dx p+qx| la cp ax + b cx + d px +q = (1-x2) b d 9. U V W u v w

11th - 12th Class
Maths
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sourtion We have [taking out ( left(1-x^{2}right) ) common from ( left.=left(1-x^{2}right)left|begin{array}{lll}a & c & p b & d & q u & v & wend{array}right| text { [applying } R_{2} rightarrow R_{2}-x R_{1}right] ) ( =mathrm{RHS} ) Hence, ( L H S=R H S )
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