Webab+bc+ca=1/3 ——— (2) Squaring equation (1) both sides, (a+b+c)² = 1 a²+b²+c²+2 (ab+bc+ca) = 1 Using the value of (ab+bc+ca) from equation (1), a²+b²+c²+2 (1/3) = 1 a²+b²+c² =1/3 ——— (3) From (2) and (3) ab+bc+ca = a²+b²+c² ab+bc+ca = a.a+b.b+c.c Comparing like terms, ab = a.a a²-ab = 0 a (a-b) =0 a= 0 or a=b Similarly, b= 0 or b=c c= … WebAdd the following (i) ab - bc, bc - ca, ca - ab (ii) a - b + ab, b - c + bc , c - a + ac (iii) 2 p 2 q 2 - 3pq + 4, 5 + 7pq - 3 p 2 q 2 (iv) l 2 + m 2, m 2 + n 2, n 2 + l 2, 2lm + 2mn + 2nl. Solution: The given algebraic expressions are written by rearranging and combining like terms followed by performing the addition operation as follows: (i) (ab – bc) + (bc – ca) + (ca - ab)
Add the following (i) ab − bc, bc − ca, ca − ab [Class 8] - teachoo
WebClick here👆to get an answer to your question ️ If the mean of a,b,c is M and ab + bc + ca = 0 , then the mean of a^2,b^2,c^2 is: Web12 jun. 2024 · Answer: B 45 degrees Step-by-step explanation: if AB and CA are = the M2 = 90 degrees in an right triangle ware one angle is 90 degrees and one is 45 degrees the … bari museum
Solve ab+bc+ca=a+b Microsoft Math Solver
Web29 feb. 2024 · BD ≅ CA has proved by corresponding parts of congruent triangles are congruent. What is a trapezoid? It is defined as the quadrilateral having four sides in which two sides are parallel to each other, it is a 2-dimensional geometry. We have given a trapezoid in which: BA ≅ CD. It is required to prove BD ≅ CD. We can prove it as follows: Web20 mrt. 2024 · How do I factor this equation (a+b+c) (ab+bc+CA)? 707 Views. How can we factorise (a-b)? 1,543 Viq. Advertisement Advertisement New questions in Math. 1 is the identity for addition of whole numbers. is it true or false ? please explain a) The sum of twice a number y and 15 is 27. WebExamples on (a + b + c) 2 Formula Let us take a look at a few examples to better understand the A plus B plus C Whole Square Formula. Example 1: Find the value of a 2 + b 2 + c 2 if a + b + c = 20 and ab + bc + ca = 20 using (a + b + c) 2 formula. Solution: To find: a 2 + b 2 + c 2 Given that: bari mxp