Question

Without using trigonometric tables, find the
given below:
12. 3cot 31°tan 15°cot 27°tan 75°cot 63°cot 590
(CBSE

Answer 1

Answer:

Step-by-step explanation:

cot 31°.tan15°.cot 27°.tan75°.cot 63°.cot 59°.

cot (90-59)°.tan(90-75)°.cot (90-63)°.tan75°.cot 63°.cot 59°.

tan59°.cot75°.tan63°.tan75°.cot 63°.cot 59°.

tan59°.cot 59°.cot75°.tan75°.tan63°.cot 63°.

tan59°/tan59°.cot75°/cot75°.tan63°/tan63°.

1×1×1

1