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Question
(213 × 657)–1 = 213–1 × ______.
Solution
(213 × 657)–1 = 213–1 × `underlinebb(1/657)`.
Explanation:
LHS = `(213 xx 657)^-1 = 1/((213 xx 657))`
⇒ `(213 xx 657)^-1 = 1/213 xx 1/656`
RHS = `213^-1 xx 657^-1 = 1/213 xx 1/657`
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