Question

EXERCISE 11.3 1. Evaluate cosec 31º - sec 590 ( iii tan 36 cor 540 cos 12º - sin789 (10) (iv) sin 13° sec 75° ( ) tan 26° tan64º 2. Show that 3. 4. (0) tan 48°tan 16°tan 42° tan 74°= 1 cos36° cos 54°- sin36ºsin 54°= 0. Iftan 2A=cot(A-18), where 2A is an acute angle. Find the value ofA. IftanA=cot B where A and B are acute angles, prove that A+B=90°. IfA, B and Care interior angles of a triangle ABC, then show that A+B =cot 2 2 5. tan 6. Express sin 75°+cos 65° in terms of trigonometric ratios of angles between​

Answer 1

Answer:

These are the Sums Done by me.

The Answers are in the Attachment.

Understand and Observe Properly.

You will get the Answer.

Hope it Helps You.

Please Mark me as Brainliest + 50 Thanks ❤