WebIf a*b=2a-3b+4ab , find the values of 5 2 and 3 / 2/5 . Question. Gauthmathier7509. Grade . 12 · YES! We solved the question! Check the full answer on App Gauthmath. Get the Gauthmath App. Good Question (154) Gauth Tutor Solution. Samuel. High school teacher. Tutor for 5 years. Answer. Explanation. 4.8 Weba + b = 3a - 3b 4b = 2a b = a/2 a+b =6 turns into a+ (a/2) = 6 multiply by 2, 2a+a=12 3a = 12 a = 4 since b = a/2 and a =4 then b=2. answer : a=4, b=2. More answers below Yash Dave Mathemagic 7 y Some Users have already answer it Here it is in different way a+b=6…. (1) a-b=2…. (2) Here coefficient of equation 1&2 will be the elements of determinate
If a=2 and b=3 find the value of 2a-3b Math Index
Web30 mrt. 2024 · Transcript. Example 9 Find the value of the following expressions for a = 3, b = 2. (i) a + b a + b Putting a = 3 , b = 2 = 3 + 2 = 5 Example 9 Find the value of the following expressions for a = 3, b = 2. (ii) 7a – 4b 7a – 4b Putting a = 3, b = 2 = 7 (3) − 4 (2) = 21 − 8 = 13 Example 9 Find the value of the following expressions for a ... WebGiven, A − 2 B = [1 3 5 7 ] and 2 A − 3 B = [− 2 0 5 7 ] 2 A − 4 B = [2 6 1 0 1 4 ]-----(1) 2 A − 3 B = [− 2 0 5 7 ]-----(2) Subtracting (1) from (2) gives B = [− 4 − 6 − 5 − 7 ] Hence, option A. shepherds field bethlehem israel
Q7If a 2 and b 3 find the value of i ii iii iv... - Lido Learning
WebWe will apply the same formula which we apply for (a-b)^2= a^2–2ab+b^2 so answer to this question (2a-b)^2 = (2a)^2–2 (2a) (b)+b^2 =4 (a^2)-4ab+b^2 Is the required answer … Web9 sep. 2024 · If a = 7 and b = − 7, what is the value of 2 a − 2 b + b 2 ? (A) -49 (B) 21 (C) 49 (D) 63 (E) 77 2 a − 2 b + b 2 = 2 a − b ( 2 − b) = 2 ∗ 7 + 7 ( 2 + 7) = 14 + 7 ∗ 9 = 14 + 63 = 77, Answer must be (E) L Kinshook GMAT Club Legend Joined: 03 Jun 2024 Web16 okt. 2024 · Shortcut Trick Put a = 2, b = 2. This satisfies the given conditions. Now, 2a + b = 2 × 2 + 2 = 4 + 2 = 6 Traditional method: Given : 4a 2 + b 2 = 20 ab = 4 To find : 2a + b Formula used : a 2 + b 2 = (a + b) 2 - 2ab Solution : 4a 2 + b 2 = 20 ⇒ (2a) 2 + b 2 = 20 ⇒ (2a + b) 2 - 2 × 2a × b = 20 ⇒ (2a + b) 2 - 4 × 4 = 20 ⇒ (2a + b) 2 - 16 = 20 shepherds field israel