Question

7cos2a + sin2a = 4 find cota​

Answer 1

Answer:

The answer has been given in above attachment

HOPE SO THIS MAY HELP U

Answer 2

Answer:4/7

Step-by-step explanation:  7cot2A+sin2A=4

therefore, 7cot2A=4sin2A

  cotA= Cos A/ Sin A ............ identity

   therefore Cot A= Cos A/ Sin A

                     Cot A=4/7