Question

Tolong bantuin kerja pr matematika adik saya ...
nomor 1.b dan 2.c , soal nya ada di gambar

Answer 1

2 c. Q (-5, -2)  --> x = -5, y=-2
                              r =√(-5)²+(-2)²
                                = √25+4
                                = √29
                                
        Sin Q =  y/r
                  = -2 / √29
                  = -2/29 √29
                  = -0,37
        
        Cos Q = x/r
                   = -5 / √29
                   = - 5/29 √29
                  = -0,93

         Tg Q = -2 / -5
                  = 0,4