Question

cos²7(1/2)-sin²22(1/2)=3+root3/4root2​

Answer 1

Step-by-step explanation:

7sin2A + 3cos2A = 4 = 7sin2A = 4- 3cos2A = 7sin2A = 4 - 3( 1 - sin2A ) = 7sin2A =4 - 3 + 3sin2A = 7sin2A - 3sin2A = 1 = 4sin2A = 1 =sinA=1/2=p/h By pythagoras theorem base= root3 Put the value for tanA i.e. p/b And u have ur answer

Answer 2

Answer:

I hope it is helpful for you dear

Step-by-step explanation:

please mark me a brainlist and follow me