The value of expression when n = 3 is 22
<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

We have to find the value of expression when n = 3
<em><u>Substitute n = 3 in given expression</u></em>

Thus the value of expression when n = 3 is 22
Area of the sector is 981.3 cm²
Step-by-step explanation:
- Step 1: Find the area of the sector where radius = 50 cm and central angle = 45°
Area of the sector = πr² (C/360), where r is radius and C is the central angle
⇒ Area = 3.14 × 50² × (45/360)
= 3.14 × 2500 × 1/8
= 7850/8 = 981.3 cm²
7x+2y=9xy-1=8xy
i love mathhomework