Question
I. 6y2 – 23y + 20 = 0 II.
4x2 – 24 x + 35 = 0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer.Solution
I. 6y2 – 23y + 20 = 0 6y2 – 8y – 15 y + 20 = 0 2y (3 y – 4) – 5 (3 y – 4) = 0 (2 y – 5) (3 y – 4) = 0 y = 5/2 ,4/3 II. 4x2 – 24 x + 35 = 0 4x2 – 14 x – 10 x + 35 = 0 2 x(2 x – 7) – 5 (2 x – 7) = 0 (2 x – 5) (2 x – 7) = 0 x = 5/2 ,7/2 Hence, x≥y
Which of the following property of soil is not influenced by tillage operations?
White grub in maize can be controlled byÂ
The condition where the plant is unable to produce a zygote with its own pollen is called as?
Pseudo dominance is related with
____ is a milk process that makes milk more easily digested by those with a sensitive digestive system.
Which of the following elements has not been proved to be essential for plants?
Sedges are monocot with triangular stem and parallel venation and belong to ______ family.
When fruit develops from the mere stimulus of the pollination, but without fertilization it is known as_____
If the time shown in a clock is 8:20, then what will be the clock angle made by minute and hour hands?
A Chromosome with medium position of centromere is known as