The first term of an a.p. is 3.Find the common difference if the sum of the first 8 terms is twice the sum of the first 5 terms.
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Edson
Use inverse matrices where possible to find the points of intersection of the pairs of lines:
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Edson
(i) 2x + 5y = 7 and x + 3y = 11
(ii) 3x - y = -3 and x + 2y = 4
(iii) x + 2y = -6 and 2x ...
Solve the following equations by using matrix method:
Question
Edson
(i) 4x + 5y = 2 and 2x + 3y = 4
(ii) 4x + 5y = 3 and 2x + 3y = 1
(iii) 4x + 5y = -1 and 2x ...
Find the points of intersection of the lines:
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Edson
(i) x - y = 6 and 2x + 3y = 4
(ii) x - y = 6 and -2x + 2y = 5
Find the equation of the circle
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Edson
(i) with centre (0,0) and radius 4
(ii) with centre (1,2) and radius 3
(iii) with centre (3,-4) and radius 5
(iv) with centre (a,b) and radius r
Show that the equation of the straight line with gradient m which passes through the point (0,c) is y = mx + c
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Edson
Find the equation of the line which passes through (1,3) and (3,6)
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Edson
Find the equation of the straight line with gradient 1/3 which passes through the point (1,2)
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Edson
Express (1 + √3)/(√3 – 1)3 , in the form a + b√c ,where a,b,c are rational
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Edson
Solve the equation √(3x + 4) – √(x – 3) = 3
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Edson