Question

in triangle ABC, AB = x units, AC= 7 units and angle b= 90 , cos B=0

Answer 1

Answer:

Step-by-step explanation:

In triangle ABC, AB = x units, AC = 7 units, angle B = 90 degrees, cos B = 0 degrees. Evaluate: root 7 - x tan C + root 7 + x cot A - 14 cos A + 21 sin C + root 49 - x square cos B