Question

without using trigonometric angles evaluate the following: 2sin68/cos22 _ 2cot 15/5tan 75 _3tan 45 tan 40 tan 20 tan 50 tan 70/5​ in steps​

Answer 1

Answer:

2cos(90-68)/cos22×2tan(90-15)/5tan75×3×1×tan40 tan 20 cot(90-50) cot (90-70)

2cos 22/cos 22=2

2tan 75/5 tan75= 2/5

3tan40 tan20 *1/tan40 *1/tan20/5=3/5

overall mutlipication

2*2/5*3/5=12/25