Question

find the value this question​

Answer 1

Answer:

Step-by-step explanation:

Sin (90-72)/cos72 + tan 60 (tan 10 .tan 80.tan 40.tan 50.tan30)

Cos 72/cos72 + tan 60 (tan10 . cot (90-80) .tan 40 .cot (90_50).tan30

1+ tan 60 (tan10×cot10×tan 40×cot40×tan30)

1+tan60 (tan10×1/tan10 × tan40×1/tan40 × tan30)

1+tan60 (1×1×tan30)

1+tan60 ×tan30

1+tan60× cot (90-30)

1+tan60 × cot60

1+tan60 × 1/tan60

1+1=2