Step-by-step explanation:
In ∆ABC, m∠B = 90°
Therefore ∆ABC is a right angled triangle with sides AB = 4 & BC = 3. AC is the hypotenuse.
Hence, by Pythagoras theorem:

Answer:
Q1. C Q2. B. Q3. D. Q4. D Q5. A.
Step-by-step explanation:
Answer:
8x4
Step-by-step explanation:
i got you
big brain
1)
-280
= -14<span>π / 9
answer is B.
----------------------
2)
3</span><span>π/ 5
</span><span>= 108
answer
C. 108 degrees
3)
cos (3</span>π/4) = -√2 / 2
sin ((3π/4) = √2 / 2
cos (3π/4) and sin ((3π/4) = -√2 / 2 * √2 / 2
<span>
answer is
</span> -√2 √2
------ * --------
2 2<span>
</span>
The answer to this question is D. 6 :)