Question

Evaluate using trigonometric values of standard angles​

Answer 1

Answer:

0

Step-by-step explanation:

1/2+4/2-5/2

Answer 2

tan 45° / cosec 30° + sec 60° / cot 45° - 5 sin 90°/ 2 cos 0°

=> tan 45° = cot 45° = 1

=> cosec 30° = 1/sin 30° = 2

=> sec 60° = 1/ cos 60° = 2

=> sin 90° = cos 0° = 1

now ,

=> 1/2 + 2/1 - 5×1/2×1

=> 1/2 + 2 - 5/2 = -2 + 2 = 0 ... AnsWeR