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User navnit40
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Answers by navnit40
0
votes
If x/b + c – a = y/c + a - b = z/a + b – c, then show that (b – c)x + (c – a)y + (a – b)z = 0.
answered
13 hours
ago
in
Class X Maths
raio and proportion
0
votes
If a, b, c are in continued proportion, prove that a : c = (a2 + b2) : (b2 + c2)
answered
13 hours
ago
in
Class X Maths
ratio and proportion
0
votes
If ax = by = cz, prove that x2/yz + y2/zx + z2/xy = bc/a2 + ca/b2 + ab/c2
answered
13 hours
ago
in
Class X Maths
ratio and proportion
0
votes
If x and y be unequal and x : y is the duplicate ratio of (x + z) and (y + z) prove that z is mean proportional between x and y.
answered
13 hours
ago
in
Class X Maths
ratio and proportion
0
votes
If a/b + c = b/c + a = c/a + b, show that each ratio is equal to ½ or – 1.
answered
13 hours
ago
in
Class X Maths
ratio and proportion
0
votes
Find the compound ratio of the following:
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
If (x – 9) : (3x + 6) is the duplicate ratio of 4 : 9, find the value of x.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
The ratio between two numbers is 3 : 4.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
Divide Rs. 720 between Sunil, Sbhil and Akhil.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
If x : y = 2 : 3, find the value of (3x + 2y) : (2x + 5y).
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
Two numbers are in the ratio of 3 : 5.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
If 3x – 2y – 7z = 0 and 2x + 3y – 5z = 0 find x : y : z.
answered
1 day
ago
in
Class X Maths
raio and proportion
0
votes
Find: The sub – triplicate ratio of the sub – duplicate ratio of 729x18 : 64y6
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
Arrange 5 : 6, 8 : 9, 13 : 18 and 7 : 12 in ascending order of magnitude.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
Which is greater 4 : 5 or 19 : 25.
answered
1 day
ago
in
Class X Maths
ratio and proportion
0
votes
Use a graph paper to answer the following questions.
answered
1 day
ago
in
Class X Maths
reflection
0
votes
A point P(a, b) is reflected in the X-axis to P'(2, – 3).
answered
1 day
ago
in
Class X Maths
reflection
0
votes
Points (3, 0) and (-1, 0) are invarient points under reflection in the line L1;
answered
1 day
ago
in
Class X Maths
reflection
0
votes
Point P(a, b) reflected on the X-axis to P'(5, 2).
answered
1 day
ago
in
Class X Maths
reflection
0
votes
Point A (2, -4) is reflected in origin as A’.
answered
1 day
ago
in
Class X Maths
reflection
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