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प्रश्न
Expand the following, using suitable identities.
`(4/5p + 5/3q)^2`
योग
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उत्तर
We have,
`(4/5p + 5/3q)^2 = (4/5p)^2 + (5/3q)^2 + 2 xx 4/5p xx 5/3q` ...[Using the identity, (a + b)2 = a2 + b2 + 2ab]
= `16/25 p^2 + 25/9 q^2 + 8/3 pq`
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३२]
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