gA+ctgA=\frac{SinA}{CosA} + \frac{CosA}{SinA}= \frac{SinA ^{2}+ CosA ^{2} }{SinA * CosA}= \frac{1}{0.2} =5CosASinA+SinACosA=SinA∗CosASinA2+CosA2=0.21
gA+ctgA=\frac{SinA}{CosA} + \frac{CosA}{SinA}= \frac{SinA ^{2}+ CosA ^{2} }{SinA * CosA}= \frac{1}{0.2} =5CosASinA+SinACosA=SinA∗CosASinA2+CosA2=0.21