1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
9

Use the diagram to complete the statement. Triangle J K L is shown. Angle K J L is a right angle. Angle J K L is 52 degrees and

angle K L J is 38 degrees. Given △JKL, sin(38°) equals cos(38°). cos(52°). tan(38°). tan(52°).

Mathematics
1 answer:
zzz [600]3 years ago
6 0

Answer:

\bold{sin(38^\circ)=cos(52^\circ)}

Step-by-step explanation:

Given that \triangle KJL is a right angled triangle.

\angle JKL = 52^\circ\\\angle KLJ = 38^\circ

and

\angle KJL = 90^\circ

Kindly refer to the attached image of \triangle KJL in which all the given angles are shown.

To find:

sin(38°) = ?

a) cos(38°)

b) cos(52°)

c) tan(38°)

d) tan(52°)

Solution:

Let us use the trigonometric identities in the given \triangle KJL.

We have to find the value of sin(38°).

We know that sine trigonometric identity is given as:

sin\theta =\dfrac{Perpendicular}{Hypotenuse}

sin(\angle JLK) = \dfrac{JK}{KL}\\OR\\sin(38^\circ) = \dfrac{JK}{KL}....... (1)

Now, let us find out the values of trigonometric functions given in options one by one:

cos\theta =\dfrac{Base}{Hypotenuse}

cos(\angle JLK) = \dfrac{JL}{KL}\\OR\\cos(38^\circ) = \dfrac{JL}{KL}....... (2)

By (1) and (2):

sin(38°) \neq cos(38°).

cos(\angle JKL) = \dfrac{JK}{KL}\\OR\\cos(52^\circ) = \dfrac{JK}{KL} ...... (3)

Comparing equations (1) and (3):

we get the both are same.

\therefore \bold{sin(38^\circ)=cos(52^\circ)}

You might be interested in
What is the median for the set of data?
AlexFokin [52]

Answer:

It's not quite right to give the direct answer, yet it's brainly, so i'll do my best. All you have to do is line up all of them from least to greatest, then you have to find the middle of all the numbers. the direct middle, like the middle of a number line, with these specific numbers. Hole this helps!

Step-by-step explanation:

6 0
3 years ago
What is the vertex of the parabola given by y = -(x − 2)2 − 1? A. (2, 1) B. (2, -1) C. (-2, 1) D. (-1, 2)
Nimfa-mama [501]

The correct answer is <u><em>(2,−1)</em></u>


5 0
3 years ago
Y- intercept of 6x-3y=24
Tcecarenko [31]

Answer:

y- intercept (s) (0, -8)

3 0
3 years ago
The length of a diagonal of a square is 7.5 mm. Find the area of the square.
dexar [7]
By Pythagoreans' theorem,

7.5² = l² × b²
56.25 = l² × b²

Since l = b
56.25 ÷ 2
= l²/b²
= 28.125 mm

∴ l = √28.125
= 5.3033 mm

Area of square
= √28.125 × √28.125
= 28.125 mm²
≈ 28.1 mm² (3s.f.)
7 0
3 years ago
I don’t understand this at all
Mnenie [13.5K]

Answer:

B = 61.0

Step-by-step explanation:

Since this is a right angle, we can use trig functions

sin theta = opp side/ hypotenuse

sin B = 7/8

Take the inverse of each side

sin ^-1 ( sin B) = sin ^ -1 (7/8)

B =61.04497563

To the nearest tenth

B = 61.0

5 0
3 years ago
Other questions:
  • Please help fast. J hjddhdhhfhdhdhdhdhdhdhdhdhdjddhd
    5·2 answers
  • Can someone help with these trigonometry problems
    15·1 answer
  • Identify the coterminal angle between 0 and 360 for the angle 480
    14·1 answer
  • it costs $4 dollars to enter the fair. each ride costs $2.50. you have $21.50. how many rides can you go on?
    12·1 answer
  • A rocking horse has a weight limit of 60 pounds. What percentage of the weight limit is 33 pounds?
    5·1 answer
  • Which expression represents the same solution as (4) (negative 3 and StartFraction 1 over 8 EndFraction? (4) (negative 3) + (4)
    15·2 answers
  • Which translation is used to map triangle ABd onto triangle IGH?
    8·1 answer
  • I need help I just don't understand
    12·2 answers
  • Brainly....HELP.... ME PLEASEE ASAP!!!! PLEASEE.....
    8·2 answers
  • I will mark a thanks and give 10 points please answer
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!