If a-b 3 and a2 +b2 29 find the value of ab
Web9 apr. 2024 · Algebra Q64 If a - b = 3, a2 + b2 = 29, find the value of ab. Algebra Gravity Coaching Centre 7,529 views Apr 8, 2024 115 Dislike Share Save GRAVITY … Web6 apr. 2016 · Q7. In a group of 160 people, 100 people like tennis and 20 people like both cricket and tennis. If each one likes at least one of these two games, then find the ratio between the number of people who like only cricket …
If a-b 3 and a2 +b2 29 find the value of ab
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WebAccording to the problem given, a - b = 3 --- ( 1 ) a² + b² = 29---- ( 2 ) We know that the algebraic identity, ( a - b )² = a² + b² - 2ab. 3² = 29 - 2 ab. [ From ( 1 ) and ( 2 ) ] 9 = 29 - … WebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.
WebIf a+b+c =9 and a² + b²+ c²=35 find the value of a³ + b³ + c³ - 3ab Solution (a+b+c)²=9²=81 a²+b²+c²+2ab+2bc+2ca=81 a²+b²+c²+2ab+2bc+2ca- (a²+b²+c²)=81-35 2ab+2bc+2ca=46 2 (ab+bc+ca)=46 (ab+bc+ca)=23 a³+b³+c³-3abc= (a+b+c) (a²+b²+c²-ab-bc-ca) =9 (35- (ab+bc+ca)) =9 (35-23) =9 (12)=108 Suggest Corrections 26 Similar questions Q. WebAnswer (1 of 4): Here I presume a2 to be a^2, b2 to be b^2 and c2 to be c^2. If a = 7, b = 5 and c = 4, then the value of x = a^2 + b^2 + c^2 - ab - bc - ca x = 7^2 + 5^2 + 4^2 - 7*5 - 5*4 - 4*7 = 49 + 25 + 16 - 35 - 20 - 28, or x = 7.
WebMCQ If A = [ 1 − 1 2 − 1], B = [ a 1 b − 1] and ( A + B) 2 = A2 + B2 , values of a and b are Options a = 4, b = 1 a = 1, b = 4 a = 0, b = 4 a = 2, b = 4 Advertisement Remove all ads Solution a = 1, b = 4 H e r e, ( A + B) 2 = A 2 + B 2 ⇒ A 2 + A B + B A + B 2 = A 2 + B 2 ⇒ A B + B A = O ⇒ A B = − B A WebIf a - b = 3, a 2 + b 2 = 29, find the value of ab. Answer: A) 10 Explanation: 2ab= a 2 + b 2 - a 2 - b 2 29-9=20 =>ab=10 Subject: Simplification - Quantitative Aptitude - Arithmetic …
Web3 mei 2024 · If a 2 + b 2 + c 2 = ab + bc + ca then the value of a 3 + b 3 + c 3 – 3abc is 1). 0 2). 1 3). -1 4). 2 If a2 + b2 + c2 = ab + bc + ca then the value of a3+ b3 + c3 – 3abc is ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & …
Web19 dec. 2024 · a 2 + b 2 = 100 ab = 48 Formula Used: (a + b) 2 = a 2 + b 2 + 2ab (a – b) 2 = a 2 + b 2 – 2ab Calculation: (a + b) 2 = a 2 + b 2 + 2ab ⇒ (a + b) 2 = 100 + 2 (48) ⇒ (a + b) 2 = 196 Taking square root on both sides, ⇒ a + b = 14 (a – b) 2 = a 2 + b 2 – 2ab ⇒ (a – b) 2 = 100 – 2 (48) ⇒ (a – b) 2 = 4 Taking square root on both sides, ⇒ a – b = 2 emily greenleaf vocal function exercisesWeb11 feb. 2024 · a - b = 3 a 2 + b 2 = 29 Formula used: (a - b) 2 = a 2 + b 2 - 2ab Calculation: a - b = 3 Squaring both sides ⇒ a 2 + b 2 - 2ab = 9 ⇒ 29 - 2ab = 9 ⇒ 20/2 = ab ∴ ab = … draftsight dynamic inputWebIt will probably just be a really simple answer, & feel to free to say user error. THOMSON. =IF (BD82=BD83,true,false) THOMSON. =IF (BD82=BD83,true,false) ANDERSON. =IF … draftsight dynamic blocksWeb14 mei 2024 · What will be the value of a 3 + b 3 , if a 2 + b 2 = 32 and a + b = 8 1). 8 2). 32 3). 128 4). 256 What will be the value of a3 + b3, if a2 + b2 = 32 and a + b = 8 ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & … draftsight dxf 変換WebSolution Given:a+b =10 a2+b2 =58 Since, (a+b)2 =a2+b2+2ab 102 = 58+2ab 100 = 58 + 2ab 42 = 2ab ab = 21 And also (a+b)3 =a3+b3+3ab(a+b) 103 = a3+b3+3ab(a+b) 1000 =a3+b3+3×21(10) 1000 =a3+b3+630 ∴ a3+b3 = 370 Suggest Corrections 44 Similar questions Q. Given, a+b=10,a2+b2 =58, then find a3+b3 = Q. draftsight drawing scaleWebIf A2 + B2 = 29 and Ab = 10, Find : a + B - Mathematics Advertisement Remove all ads Advertisement Remove all ads Sum If a 2 + b 2 = 29 and ab = 10, find : a + b Advertisement Remove all ads Solution (a + b) 2 = a 2 + b 2 + 2ab ⇒ (a + b) 2 = 29 + 2×10 ⇒ (a + b) 2 = 29 + 20 ⇒ (a + b) 2 = 49 ⇒ a + b = 49 ⇒ a + b = ±7 Concept: Application … draftsight draw line at angleWebIf A2 + B2 = 29 and Ab = 10, Find : a + B - Mathematics Advertisement Remove all ads Advertisement Remove all ads Sum If a 2 + b 2 = 29 and ab = 10, find : a + b … draftsight edit block