Question

please with solution ​

Answer 1

Step-by-step explanation:

Some plants cannot produce their own food and must obtain their nutrition from outside sources—these plants are heterotrophic. This may occur with plants that are parasitic or saprophytic. Some plants are mutualistic symbionts, epiphytes, or insectivorous.

Answer 2

Step-by-step explanation:

x + y = 4

y = 4 – x

1 / x + 1 / y = (x + y) / xy

f (x) = 4 / xy = (4 / x) (4 – x)

f (x) = 4 / (4x – x2) and f’ (x) = (-4 / (4x – x2)2) (4 – 2x)

f’ (x) = 0, 4 – 2x = 0.

x = 2 and y = 2

Minimum of (1 / x + 1 / y) = 1 / 2 + 1 / 2 = 1

answer of 46th question = 1