Question

cos 60°=81-2 sin 30 °+1/2 sin 1/2 sin square 90 °=2 cos square 30 °-1​

Answer 1

Answer:

in a given angleABC,AB=4cm,BC=4cm show that sin square A+cos sqaure A=1 and 1+tan sqaure C = sec square C

Step-by-step explanation:

in a given angleABC,AB=4cm,BC=4cm show that sin square A+cos sqaure A=1 and 1+tan sqaure C = sec square C