Question

If sectita+tantita equals to P then prove that sintita equals to psquare -1 divided by psquare+1​

Answer 1

sectita+tantita=p

sectita-tantia=1/p

by solving them we get

sectita=

${p}^{2} + 1 \div 2p$

cos=2p/p2+1

tantita=p2-1/2p

sintita=p2-1/p2+1