Find the value . of e expression 25 x square + 9 y square + 30 x y whe

1.	Find the value . of e expression 25 x square + 9 y square + 30 x y when X equal to 8 and y equal to 10
Answer» R1 = 2 ohm R2 = 3 ohm R3 = 6 ohm (a) When R2 and R3 are connected in parallel with R1 in series we get 1/R = 1/R2 + 1/R3 g= 1/3 + 1/6 = 1/2 Thus, R = 2 ohm RESISTANCE in series = R + R1 = 2 + 2 = 4 ohm (B) When R1,R2, R3 are connected in parallel we get 1/R = 1/R1 + 1/R2 + 1/R3 = 1/2 + 1/3 + 1/6 = 1 ohm.

Find the value . of e expression 25 x square + 9 y square + 30 x y when X equal to 8 and y equal to 10

Answer»

R1 = 2 ohm R2 = 3 ohm R3 = 6 ohm (a) When R2 and R3 are connected in parallel with R1 in series we get 1/R = 1/R2 + 1/R3 g= 1/3 + 1/6 = 1/2 Thus, R = 2 ohm RESISTANCE in series = R + R1 = 2 + 2 = 4 ohm

(B) When R1,R2, R3 are connected in parallel we get 1/R = 1/R1 + 1/R2 + 1/R3 = 1/2 + 1/3 + 1/6 = 1 ohm.

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Find the value . of e expression 25 x square + 9 y square + 30 x y when X equal to 8 and y equal to 10

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