Question

- tan o cot (90° - 0) + sec cosec(90° - 0) + sin2 35° + sin 2 55°
tan 10° tan 20° tan 30° tan 70° tan 80°​

Answer 1

Answer:

Step-by-step explanation:

tan80°= cot10°

therefore tan80°= 1/tan10°

similarly we can find value of

tan70°= 1/tan20°

tan60= 1/tan30°

tan50°= 1/tan40°

put values

and the answer will be 1

Hope this helps you :)