The value of equation when n = 3 is 50
<em><u>Solution:</u></em>
<em><u>Given equation is:</u></em>

We have to find the value of equation when n = 3
By plugging in n = 3 in given equation we can find the value of given equation
<em><u>Substitute n = 3 in given equation</u></em>

Thus the value of equation when n = 3 is 50
Answer:
Step-by-step explanation:
12). By applying Pythagoras theorem in the given right triangle,
Hypotenuse² = (Leg 1)² + (Leg 2)²
x² = 7² + 7²
x² = 2(7)²
x = 
x = 
13). By sine rule,
sin(60)° = 

y = 
y = 18
By cosine rule,
cos(60)° = 

x = 
x = 
14). By applying Pythagoras theorem in the given right triangle,
12² = x² + x²
144 = 2x²
72 = x²
x = √72
x = 6√2
Answer:
A) 22
B)125
C)55
Step-by-step explanation:
Linear pair=180
2x+11+6x-7=180
8x+11-7=180
8x+4=180
8x=176
x=22
Figgyfhikfghbhfhjcfdghhcvjfx