Question

find maximum and minimum 0f each function, 6 cosA+8sinA

Answer 1

Answer:

6cosA + 8sinA

A = 0

$6 \times 1 + 0 = 6$

A= 90

$6 \times 0 + 8 \times 1 = 8$

A=180

$- 6 + 0 = - 6$

A=270

$0 + 8 \times - 1 = - 8$

So,

Maximum = 8

Minimum = - 8