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Start learning 50% faster. Sign in nowThe word "vauched" is misspelled and should be corrected to "vouched." "Vouched" is the correct past tense form of the verb "vouch," which means to support or endorse something.
If a + b = 56 and (a – b)² = 496, find the value of the product of a and b.
If (a + b + c) = 18 and (ab + bc + ca) = 100, then find the value of (a² + b² + c²).
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 – 3(a – 4 ) (b – 2 ) (c &n...
A solid metallic sphere of radius 15 cm is melted and recast into spherical balls of radius 3 cm each. What is the ratio of the surface area of the orig...
A man running at the speed of 6 kmph was over taken by the train moving with the speed of 78 kmph in 20 seconds. Find the length of train.