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CBSE Class 10 Answered

if alpha and beeta are zeros of quadratic equation ax +by+c =0 then 1/alpha -1/beeta
Asked by ankit | 23 Jul, 2018, 09:09: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight alpha space and space straight beta space are space zeros space of space QE 1 over straight alpha minus 1 over straight beta equals fraction numerator straight beta minus straight alpha over denominator αβ end fraction equals negative fraction numerator open parentheses straight alpha minus straight beta close parentheses over denominator αβ end fraction equals negative fraction numerator square root of open parentheses straight alpha plus straight beta close parentheses squared minus 4 αβ end root over denominator αβ end fraction end style
Answered by Arun | 24 Jul, 2018, 10:06: AM

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CBSE 10 - Maths
cos80÷ sin10+cos59• cosec31
Asked by raopaidi | 25 Apr, 2024, 04:06: PM
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CBSE 10 - Maths
2/x+2/3y=1/6; 3/x+2/y=0
Asked by aditikaldate7 | 21 Apr, 2024, 03:16: PM
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CBSE 10 - Maths
ABCD is a rectangle in which diagonal AC is equals to 17 cm angle BCA is equals to thitha and sin theta is equals to 8/17 find the area of rectangle ABCDE (ii) the perimeter of rectangle ABCD
Asked by pathaksuman622 | 21 Apr, 2024, 11:56: AM
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CBSE 10 - Maths
PQ is a chord of length 8 cm to a circle of radius 5 cm. The tangents P and Q intersect at a point T. Find the length of the tangent TP.
Asked by yalagondanikhil | 16 Apr, 2024, 12:25: PM
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CBSE 10 - Maths
if one of the zeroes of quadratic polynomial F(x) = 4x² - 8kx - 9 is equal in magnitude but opposite in sign, find K
Asked by rrajansinghakb199 | 08 Apr, 2024, 05:12: PM
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CBSE 10 - Maths
express 15.265 in p/q form?
Asked by nagalaxmidurgarao937 | 08 Apr, 2024, 01:42: PM
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CBSE 10 - Maths
the poles AB and CD of different heights are standing vertically on the ground level from a point P on the line joining the foots of the pole on the level of ground the angle of elevation to the top of the pole are founded to be complementary the of the CD and the distance PD 20√3m and 20m respectively if the BP is 10m then find the length of AB and the distance AC between the tpo of the poles
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CBSE 10 - Maths
from the pair of linear equations in the following problems and find their solution graphically 10 students of class 10 to part in a mathematic quiz if the number of girls is for more than the number of boys find the number of boys and girls who took part in the quiz
Asked by muttenenimalleswarrao | 29 Mar, 2024, 08:32: PM
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CBSE 10 - Maths
maths
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Asked by sonawnerohan01 | 23 Mar, 2024, 12:25: PM
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CBSE 10 - Maths
The distance of the point (5,-2) from x-axis will be :-
Asked by pathakvaishnavi9139 | 23 Mar, 2024, 10:45: AM
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