Math, asked by krishnendusinha1970, 2 months ago

if a+b+c= 12 and a +b+d=64, find the value of ab + bc + ac.

Answers

Answered by mahak3922

1

Step-by-step explanation:

(a+b+c)²=a²+b²+c²+2ab+2bc+2ac=12²

=64+2(ab+bc+ac)=144

=2(ab+bc+ca)=144-64=80

=ab+bc+ca=80/2

=40

Previous Question

Next Question

Similar questions

Science, 1 month ago

what is the difference between thermoplastic and thermosetting plastic pls don't spam...

Math, 1 month ago

Which of the following is true? X²+5x-3 is a linear polynomial X²+4x-1 is a binomial X+1 is monomial 7x³ is monomial...

Hindi, 1 month ago

sanskrit to hindi anuvad त्वम् अनम: ⬆️⬆️ iska hindi anuvad kya hoga...

Math, 2 months ago

evaluate 2⁴/(7⁰+3⁰)³...

Hindi, 2 months ago

3. 588 और 231 का योगफल कितना होगा?

Hindi, 9 months ago

(७) मुस्कराहट 7. जिम्नलिखित प्रश्नों के उत्तर लिखिए- (क) संज्ञा की परिभाषा लिखिए। (ख) संज्ञा के भेदों के नाम उदाहरण सहित लिखिए। (मा) भाववाचक संज्ञा की क्या पहचान है? 8. आपका तथा आपके देश का नाम उज्ज्वल हो में जाएंगे और क्यों?

Science, 9 months ago

$\huge\boxed{\fcolorbox{green}{blue}{ANSWER }}$ full form of LSA..

Accountancy, 9 months ago

A and B are partners sharing profits in the ratio of 1:1 having fixed capital of Rs.2,00,000 and Rs. 100,000 respectively.After closing the accounts for the year ending 31st march,2020,it was discovered that interest on capitals@8%p.a. was ommitted to be provided.Adjustment Entry will be?