Question

sec A = 5/4 verify that 3 sin a - 4 sin cube A by 4 cos cube A minus 3 cos A is equal to 3 tan a minus tan cube a by 1 minus 3 tan square a​

Answer 1

Step-by-step explanation:

given in the pic explain properly

Answer 2

Step-by-step explanation:

yeh dekh lo. ,R.D. walo