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CBSE Class 9 Answered

Q1. If a straigh line falling on two straight line makes interior on same side of it, whose sum is 50 degree ,then the two straight lines if produced indefinetly, meet on the same side on which the sum of angle is  :   1. less than 50 2. greater than 50  3. equal to 50 4. greater than 100 Q2. The polynomials ax²+3x²-3 and ax³-5x+a when divided with (x-4) leaves remainder R1 And R2 respectively. Find the value of a if 2R1-R2=0          
Asked by Shrivatsa | 23 Feb, 2018, 07:44: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight Q 1. space equal space to space 50 since space on space opp space side space it space will space be space 260 space so space they space will space not space intersect straight Q 2 ax ² plus 3 straight x ² minus 3 space and space ax ³ minus 5 straight x plus straight a space put space straight x equals 4 space get space straight R subscript 1 space and space straight R subscript 2 space resp put space in space 2 straight R subscript 1 minus straight R subscript 2 equals 0 end style
Answered by Arun | 25 Feb, 2018, 10:58: AM

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