Question
‘Wilt’ is a serious disease in pigeon pea. Which
one of the following measures may not help in reducing the incidence of this disease?Solution
Wilt disease of pigeon pea is caused by Fusarium oxysporum f. udum. The main symptom of the disease is wilting characterized by gradual, sometimes sudden, yellowing, withering and drying of leaves followed by drying of entire plant or some of its branches.
(u - 5) 2 + (v + 2) 2 + (w – 4) 2 = 0, then find the value of 4u - v + w.
What is the highest common factor of (x³ - x² - x - 15) and (x³ - 3x² - 3x + 9)?
In a triangle ABC, a point D lies on AB and points E and F lie on BC such that DF is parallel to AC and DE is parallel to AF. If BE = 4 cm. EF = 6cm. th...
Solve the inequality for real x:
3 − 2x ≤ (x + 1)/2 < 5
Consider a function f(x) = x4Â + x3Â + x2Â + x + 1, where x is a positive integer greater than 1. What will be the rema...
The curved surface area of a cylinder is 462 cm² and its base area is 346.5 cm². What is the volume (in cm³) of the cylinder? (Use π =...
If √x + 1/√x = 2 then find the value of 3x2 + 1/3x2.
A train can cross a pole, a bridge of 720 meter long and platform of 640 meter long in 9 seconds, _____ seconds and 25 seconds, respectively.
The...
Find the number of zeroes in 20 × 45 × 32 × 25.
