Question
Khaira disease of rice can be controlled by spraying of
____________ .Solution
Khaira disease in rice is caused by zinc deficiency and can be effectively controlled by spraying zinc sulphate on the crops. This treatment helps improve plant growth, corrects the deficiency, and prevents the characteristic symptoms like chlorosis and stunted growth.
If x = 222, y = 223 and z = 224, then find the value of x³ + y³ + z³ – 3xyz
If 'a' = 2 + √3, then find the value of [a2 - (1/a2)].
`25(2/3)+11(1/9)+16(4/5)xx6(5/12)` = ? - `632/45`
If x + y = 2 and 1/x + 1/y = 18/15, then find the value of (x3 + y3)?
If 10x2 – 6xy+y² – 4x+4= 0, then find the value of (3x+2y).
If (r + s + t) = 12 and (rs + st + tr) = 60, then find the value of (r² + s² + t²).
If x² + x = 11
find (x+4)³ +1/((x+4)³)

If x, y and z are real numbers such that (x-5)2+(y-8)2+(z-12)2= 0 then (x+y+z) is equal to
- If x² - 2x + 1 = 0, then find the value of (x⁴ + x⁻⁴)(x + x⁻¹).