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سا5. Simplify the following.2(a)+7 21-6(c) (-10) +2=7. |
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Answer» yep guy Step-by-step explanation: 2a+21*7-6c*-10=7 PRASHAANT22042005 ASK YOUR QUESTION ripurap2 14.07.2017 Math Secondary School +5 pts Answered If 2a=3b=6c then show that c=ab/a+b 2 SEE ANSWERS Answers priyanka95 Priyanka95Ace if 2∧a=3∧b=6∧c, then PROVE that c=ab/a=b let 2∧a=3∧b=6∧c=d so,2∧a=d ⇒d∧1/a=2----------------eq 1. and 3∧b=d ⇒d∧1/b=3----------------eq 2. and also 6∧c=d ⇒d∧1/c=6-----------------eq 3. we know that 6=2×3-----------------eq 4. now put value of 2, 3 and 6 from eg. 1,2 and 3 we GET d∧1/a × d∧1/b = d∧1/c d(1/a=1/b) = d∧1/c so, 1/c = 1/a + 1/b ⇒1/c = (b+a) / (ab) ⇒c=ab / a+b hence proved pls mark as BRAINLIEST |
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