If a + (1/a) = 2, then find the value of (a5 + a3 + 6)/(7a – 5).
Given, a + (1/a) = 2 Or, a2 + 1 = 2a Or, a2 – 2a + 1 = 0 Or, a2 – a – a + 1 = 0 Or, a(a – 1) – 1(a – 1) = 0 Or, (a – 1)(a – 1) = 0 Or, a = 1 So, (a5 + a3 + 6)/(7a – 5) = (1 + 1 + 6)/(7 – 5) = 8/2 = 4
2, 4-D is selective herbicide for
Which of the following is correct?
Non-Selective, foliage active contact herbicide is
The highly proteinous seed is:
Match List I with List II
Choose the correct answe...
Tendrils of the tropical orchids we use as flavoring (Vanilla spp.) originate from
Which term describes plants in which ovules are not enclosed by any ovary wall and remain exposed before and after fertilization?
Reserpine, a drug is extracted from
Which of the following is also known as downy mildew fungus" ?
Match the following oilseeds crops with their scientific name:
