All categories

2 years ago

Sin15°+tan65°=cot25°+cos75°

Mathematics

1 answer:

kifflom [539]2 years ago

6 0

Step-by-step explanation:

L.H.S =

sin15°+tan65°

sin(90°-75°)+tan(90°-25°)

cos75°+cot25°

or; cot25°+ cos75°. R.H.S

You might be interested in

How to solve 4/7y-2 = 3/7 + 3/14

lisabon 2012 [21]

Solution

1) Simplify $\frac{4}{7y}$ to $\frac{4y}{7}$
$\frac{4y}{7}$ −2= $\frac{3}{7}$ + $\frac{3}{14}$

2) Simplify $\frac{3}{7}$ + $\frac{3}{14}$ to 914
 $\frac{4y}{7}$ −2= $\frac{9}{14}$

3) Add 2 to both sides
 $\frac{4y}{7}$ = $\frac{9}{14}$ +2

4) Simplify $\frac{9}{14
}$ +2 to $\frac{37}{14}$
$\frac{4y}{7}$ = $\frac{37}{14}$

5) Multiply both sides by 7
4y= $\frac{37}{14}$ ×7

6) Simplify $\frac{37}{14}$ ×7 to $\frac{259}{14}$
$\frac{4y}{7}$ = $\frac{259}{14}$

7) Simplify $\frac{259}{14}$ to $\frac{37}{2}$
$\frac{4y}{7}$ = $\frac{37}{2}$

8) Divide both sides by 4
y= $\frac{37}{2}$ ×4

9) Simplify 2×4 to 8
y= $\frac{37}{8}$

Hope this helps

5 0

3 years ago

On the grid, draw the line with the equation x = -4

nexus9112 [7]

Answer:

Step-by-step explanation:

On a grid,

go to the middle, aka 0,0

move left 4 times, but stay on the same line. Then draw that line up and down on the -4 of x.

sorry if this isn't clear

6 0

3 years ago

Read 2 more answers

What steps do I take for this

Luden [163]

First, divide the shape into two figures ( a semicircle and a rectangle)
Then, find the are or the two shapes using the area formula for a semicircle ( $\frac{ \pi r^{2} }{2}$ ) and the are formula for a rectangle (base x height)
Finally, add the two areas together and you have your answer

7 0

3 years ago

Can someone help me please?

Molodets [167]

-2 should be correct. It is an input for that given graph.

5 0

3 years ago

A square box has an area of 90,000 square inches. What's the length of each side of the box?

Sever21 [200]

Answer: A 300 inches

Step-by-step explanation:

Area (a) = 90,000

Side = √a

Side = √90000

Side = 300

8 0

3 years ago

Read 2 more answers

Sin15°+tan65°=cot25°+cos75°​

Sin15°+tan65°=cot25°+cos75°