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Gekata [30.6K]
3 years ago
13

Given that the 10th term of an AP is 45 and that the sum

Mathematics
1 answer:
Otrada [13]3 years ago
4 0

Answer:

Wait

Step-by-step explanation:

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Which of the following are trigonometric identities ? Check all that apply. Tan^2 x -
snow_tiger [21]
I hope you are looking for these answer choices as you have not posted the choices. Therefore, I have a similar question with these answer choices.

a). tan² x - 1 = sec²x
b). 4 cosxsinx = 2cos + 1 -2sinx
c). tanx cosx cscx = 1
d). 1- tanx tany = cos(x+y) ÷ cosx cosy

<span>Options B, C, D are correct because, for all them, left-hand side equals to the right-hand side for x = 0.

The option A)
</span>tan² x - 1 = sec²x<span> is not true. 
since x = 0
Therefore,
The Right hand side would be:
                                         </span>tan² x - 1 = sec²(0)<span>
                                                             = 1
The Left hand side would be:
                                         </span>           tan² x - 1 = tan² (0) - 1
                                                                   = 0 - 1
                                                                   = -2
Therefore,
Both sides are not equal so it's not a trigonometric identity.
3 0
3 years ago
6.5472 rounded to the hundredths place
lidiya [134]

Answer:

6.55

Step-by-step explanation:

6 0
3 years ago
How to get rid of a square root in the denominator?.
Romashka [77]

Answer:

see explanation

Step-by-step explanation:

to clear a square root on the denominator

Multiply the numerator and denominator by the square root, for example

\frac{5}{\sqrt{3} }

= \frac{5}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } = \frac{5\sqrt{3} }{3}

4 0
2 years ago
What is the ratio of 420m to 1 km
suter [353]

Answer:

21/50 or 21:50

Step-by-step explanation:

1km = 1000m

That means one meter is equal to 1/1000 of a km.

420 meters is 420/1000 of a km which is equal to 42/100 = 21/50 or 21:50

Is it right?

Also can I have Brainiest

7 0
3 years ago
Read 2 more answers
Describe features that determine a translation, rotation, and reflection.
yulyashka [42]
Hii I hope this helps! :)
Translation: It’s a transformation that moves every point in a figure the same distance in the same direction.
Rotation: It’s a a transformation that turns a figure about a fixed point.
Reflection: It’s a transformation that takes a shape/preimage and flips it across a line called the line of reflection to create a new shape/image.
7 0
3 years ago
Read 2 more answers
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