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garik1379 [7]
3 years ago
7

A(n)= - 3+ (n = 1)(6) Answer please help .

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

I also need some help!!!!

You might be interested in
4.
zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.

Required

Prove

To start with; we open the bracket on the left hand side

(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)

(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)

(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x

(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x

Reorder

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

From trigonometry;

sin^2x + cos^2x = 1

So;

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

becomes

(sin x - cos x)^2 = 1 - 2sinx cos x

Also from trigonometry;

sec^2x - tan^2x = 1

So,  

(sin x - cos x)^2 = 1 - 2sinx cos x

becomes

(sin x - cos x)^2 = sec^2x - tan^2x  - 2sinx cos x

Proved

3 0
3 years ago
Plz, Help me with this!!!!
yanalaym [24]
It’s 152y+125, basically by simplifying
6 0
2 years ago
Read 2 more answers
Choose correct response
Illusion [34]

Answer:

D

Step-by-step explanation:

11.1/0.01=11.1*100=1110

7 0
2 years ago
27(n+4)+18n=7(n-18)-40n So confused can yall help me?
Sedbober [7]

Answer:

this is your answer!!  n=-3

Step-by-step explanation:

hoped i was able to help thank u can i get brainiest pls:)

5 0
2 years ago
Read 2 more answers
If 4C + 3 = 15, what is the value of C?
Soloha48 [4]
4c+3=15
You need to get rid of the 3
So you minus it from each side so you
4c=12
12/4=3
So c =3
4 0
3 years ago
Read 2 more answers
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