2 years ago

What is the formula to find alpha square minus beta square?I need help in Q 1)(i).

Mathematics

1 answer:

marta [7]2 years ago

3 0

(I) Alpha+Beta= 2
Alpha-Beta= √D/|a|= √10

Alpha^2 - Beta^2
=(Alpha+Beta) (Alpha-Beta)
= 2* √10
= 2√10

You might be interested in

Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC

Kamila [148]

<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span> $\frac{a}{sinA} = \frac{b}{sinB}$
$\frac{20}{sin30^0} = \frac{b}{sin45^0}$
$\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }$
$20* \frac{ \sqrt{2} }{2} = b* \frac{1}{2}$
$\frac{20 \sqrt{2} }{2} = \frac{b}{2}$
$2*b =2*20 \sqrt{2}$
$2b = 40 \sqrt{2}$
$b = \frac{40 \sqrt{2} }{2}$
$\boxed{b = 20 \sqrt{2} }$

6 0

2 years ago

Read 2 more answers

alice drew two triangles on the coordinate plane as shown. Which series of transformation proves the two triangles are congruent

Nimfa-mama [501]

Answer:

idk i just really neeed the points

Step-by-step explanation:

alice drew two triangles on the coordinate plane as shown. Which series of transformation proves the two triangles are congruent?

8 0

2 years ago

Find -34 + 15 - 29 - (-3)