Question

) If cos 0 = 0.6 show that 5 sin 0 - 3 tan 0 = 0.​

Answer 1

sino=(1-cos²o)½=(1-0.36)½=(0.64)½=0.8

tano=sino/coso=0.8/0.6=4/3

5sino-3tano=5(0.8)-3(4/3)

=4-4=0