Question

for what value of k, the pair of linear equation 2x-y-3=0,2kx+7y-5=0 has a unique solution​

Answer 1

Step-by-step explanation:

At least 17 elements are known to be essential nutrients for plants. In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients. ... Carbon and oxygen are absorbed from the air while other nutrients are absorbed from the soil