Question

АЛГЕБРА 10-ЫЙ кл ПОМОГИТЕ

Answer 1

$1); ; sinvarphi =-1; ; to ; ; varphi =-frac{pi }{2}+2pi n; ; ili; ; varphi =frac{3pi}{2}+2pi n,; nin Z\\varphi in [, 0;2pi , ]; ; to ; ; varphi =frac{3pi }{2}\\2); ; sinvarphi =1; ; to ; ; varphi =frac{pi }{2}+2pi n; ,; nin Z\\varphi in [-pi ;pi , ]; ; to ; ; varphi =frac{pi }{2}\\3); ; tgvarphi =sqrt3; ; to ; ; varphi =frac{pi }{3}+pi n; ,; nin Z\\varphi in Big (frac{pi }{2};frac{3pi }{2}Big ); ; to ; ; varphi =pi +frac{pi}{3}=frac{4pi }{3}$

$4); ; cosvarphi =-1; ; to ; ; varphi =pi +2pi n, ,; nin Z\\varphi in [, 0;2pi , ]; ; to ; ; varphi =pi$