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zubka84 [21]
3 years ago
6

Prove this qns plzz ​

Mathematics
2 answers:
Triss [41]3 years ago
7 0

answer is in a picture have a look

artcher [175]3 years ago
6 0

Answer:

L.H.S.

= (cos5a.sin2a-cos4a.sin3a)/ (sin5a.sin2a-cos4a.cos3a)

Multiply numerator and denominator by 2.

= 2(cos5a.sin2a - cos4a.sin3a) / 2(sin5a.sin2a - cos4a.cos3a)

= (2cos5a.sin2a - 2cos4a.sin3a)/

(2sin5a.sin2a - 2cos4a.cos3a) = [sin(5a+2a)-sin(5a-2a)-sin(4a+3a)

+sin(4a-3a)]/[cos(5a-2a)-cos(5a+2a)-sin(4a-3a) +cos(4a+3a)]

= (sina - sin3a)/(cso3a-cosa)

= (-2cos2a.sina)/(-2sin2a.sina)

= cos2a/sin2a

= cot2a

= R.H.S.

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balu736 [363]

Step-by-step explanation:

y = mx +b

m - the slope; b- y-intercept

therefore;

y = 3x - 4

m = 6; b = -4

y = 5x - 3

m = 5; b = -3

The coordinates of the point where the lines are crossed are the solution to the system of linear equations.

How to graph the lines:

y = 6x - 4

y-intercept (0; -4)

for x = 1 ⇒ y = 6 · 1 - 4 = 6 - 4 = 2 ⇒ (1; 2)

y = 5x - 3

y-intercept (0; -3)

for x=1 ⇒ y = 5 · 1 - 3 = 5 - 3 = 2 ⇒ (1; 2)

***look at the img for graph reference***

Part B: x = 1; y = 2

7 0
3 years ago
I know i got the first half right, i’m not sure what i need to do for the second half. please help
OLga [1]

Answer/Step-by-step explanation below:

2 - x < 7

- x  + 2 < 7

-x + 2 -2 < 7 - 2

-x < 5

\frac{x}{-1 } < \frac{5}{-1}

x > - 5

<u><em>Kavinsky</em></u>

6 0
3 years ago
F(x)= 4x+1 and g(x)=x^2-5 find (f/g) (x)
Georgia [21]
The answer to the question

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3 years ago
Plz help.....................
scoray [572]
X^2 - 7x + 12
factors of 12      sum of the factors
1 * 12                13
2 * 6                    8
3 * 4                    7 
-1 * -12               -13
-2 * -6                  -8
-3 * -4                  -7
(x - 3)(x - 4)
The second option
4 0
4 years ago
In terms of rigid transformations (reflections, rotations, and translations), what does this difference represent?
makvit [3.9K]

Solution:

There are four kinds of rigid transformations.

1. Reflection

2. Rotation

3. Translation

4. Dilation

1.  The Meaning of term reflection is when we reflect something through a line or mirror the distance of object from line of reflection on both sides are same. The two images Preimage and image are congruent.

2.   Rotation means rotating an object or geometrical shape through an angle. An angle can be of any measure that is 0,30°,45°,90°,...... In rotation the two , image and preimage are congruent.

3.  While in translation , we shift something from a place to another place keeping the two images,that is image and preimage are congruent.

In all three,either in  reflection, rotation,or  translation  there is no change in shape and size, the two that is  image and Preimage are congruent.

4 0
4 years ago
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