Consider a ABC right angled at C and
Then,
‣ Base [B] = BC
‣ Perpendicular [P] = AC
‣ Hypotenuse [H] = AB
Let,
Base = 7k and Perpendicular = 8k, where k is any positive integer
In ABC, H² = B² + P² by Pythagoras theorem
Calculating Sin
Calculating Cos
<u>Solving the given expression</u><u> </u><u>:</u><u>-</u><u> </u>
Putting,
• Sin =
• Cos =
<u>Using</u><u> </u><u>(</u><u>a</u><u> </u><u>+</u><u> </u><u>b</u><u> </u><u>)</u><u> </u><u>(</u><u>a</u><u> </u><u>-</u><u> </u><u>b</u><u> </u><u>)</u><u> </u><u>=</u><u> </u><u>a²</u><u> </u><u>-</u><u> </u><u>b²</u>
✧ Basic Formulas of Trigonometry is given by :-
✧ Figure in attachment
Answer:
bottom 2 shapes
Step-by-step explanation:
6/10?