WebIf a=i−j+k,a⋅b=0,a×b=c, where c −=−2i−j+k, then b − is equal to Medium View solution > If a, b, c are unit vectors such that a⋅ b=0= a⋅ c and the angle between b and c is 3π, then …
NCERT Exemplar Class 8 Maths Chapter 13 Playing with Numbers
Web29 jan. 2024 · a + b = 8 ab = 10 Formula used: (a + b)2 = a2 + b2 + 2ab (a3 + b3) = (a + b) (a2 – ab + b2) Calculation: a + b = 8, ab = 10 ⇒ (8)2 = a2 + b2 + 2 × 10 ⇒ 64 = a2 + b2 + 20 ⇒ a2 + b2 = (64 – 20) ⇒ a2 + b2 = 44 Now, (a3 + b3) = (a + b) (a2 – ab + b2) ⇒ (a3 + b3) = (8) (44 – 10) ⇒ (a3 + b3) = (8 × 34) ⇒ (a3 + b3) = 272 ∴ The required value is 272 WebSolution If 6A × B = A 8 B, then the value of A – B is – 2. Explanation: 6A × B = A 8 B AB = B ⇒ A = 1 6B = A8 ⇒ 6B = 18 ⇒ B = 3 A – B = 1 – 3 = – 2 Concept: Games with Numbers Is there an error in this question or solution? Chapter 13: Playing With Numbers - Exercise [Page 410] Q 16 Q 15 Q 17 APPEARS IN NCERT Mathematics Exemplar Class 8 ark pumpkin id
If a/b = 5/8, then what is the value of a-b/b? - Quora
Web22 feb. 2024 · Answer: The value of a-b is ±4. Step-by-step explanation: Given a+b=6...eq.i ab=5......eq.ii To find the value of a-b Solution: From eq. i a+b=6 a=6-b Again From eq. ii ab=5 a=5/b Here, on equating the values of a, we get 6-b=5/b or, 6b-b²=5 or, b²-6b+5=0 or, b²- (5+1)b+5=0 or, b²-5b-b+5=0 or, b (b-5)-1 (b-5)=0 or, (b-1) (b-5)=0 Web7 aug. 2013 · That is, whether the first ++a is evaluated first or the second ++a is evaluated first in either case a is incremented twice and then the + operator takes effect, so the eventual equation is either b = 2 + 3; or b = 3 + 2 thus b = 5. When I get home I will try this on with my C compiler. Web15 okt. 2016 · Then, using $(1) $ we can write ... In writing this in future, for the penultimate line that you wrote that is equivalent to: B⋅(∇×A)−A⋅(∇×B). Writing it in terms of the … ark pump gun munition id