Question
A rear-view mirror for driving is
–Solution
The kind of mirror used in the rear-view mirror must be convex mirrors, because it creates smaller, yet still upright images. Concave mirrors would create an inverted image and the cars you see are not upside down. Convex mirrors make everything smaller so this allows the driver to see a greater range of things behind him.
when x =4 and y =-6 then find the value of 27x³ +58x²y +31xy² +8y³?
Simplify the expression:
3x + 5y - [(7x + 3y) - (2x + y) + 4y] - xA man covered 40 km by bus and rest 25 km on foot. If the speed of the bus is 150% more than that of the man and the whole distance is covered in 2 hour...
If (6x + y) = 180 and 5x:2y = 25:12, then find the value of (2x² + 5y²).
If (a + b)2 = 18 + c2, (b + c)2 = 22 + a2 and (c + a)2 = 24 + b2, then find the va...
If both the roots of x 2 + kx + 49 = 0 are real and equal, then find the value of 'k'.
If √b + (1/√b) = 8, then find the value of b + (1/b).
- If x² - 2x + 1 = 0, then find the value of (x² + x⁻²)(x² + x⁻²).
- If a 3 + b 3 + c 3 = 62, abc = -6 and (a + b + c) = 5, then what is the value of ab + bc + ac?
- If (360 – 335 + 205) ÷ 10 + √1600 = x, then {(x/2) + 8} = ?
Relevant for Exams:
