TOÁN 9 - ÔN TẬP HÌNH HỌC CHƯƠNG 1

PS.SQ

PS.PQ

QS.QP

PQ.RS

PS.SQ

PS.PQ

QS.QP

PQ.RS

PS.SQ

PS.PQ

QS.QP

PQ.RS

$$\frac{5}{3}$$  

$$\frac{5}{4}$$  

$$\frac{3}{5}$$  

$$\frac{3}{4}$$  

$$\frac{2a}{\sqrt[]{3}}$$  

$$\frac{\sqrt[]{3}}{2}$$  

$$2\sqrt[]{3}a^2$$  

$$\frac{a}{\sqrt[]{3}}$$  

$$\sin\alpha=\frac{b}{c}$$  

$$\cot\alpha=\frac{b}{c}$$  

$$\tan\alpha=\frac{a}{c}$$  

$$\cot\alpha=\frac{a}{c}$$  

$$\sin^2\alpha+\cos^2\alpha=1$$  

$$\sin\alpha=\cos\beta$$  

$$\cos\beta=\sin\left(90^o-\alpha\right)$$  

$$\tan\alpha=\frac{\sin\alpha}{\cos\alpha}$$  

29

$$\sqrt[]{861}$$  

$$\frac{41\sqrt[]{2}}{2}$$  

$$2\sqrt[]{105}$$