3 years ago

Cotx-1/ cotx+1 = 1-tanx/1+tanx

1 answer:

7 0

Sinxcosx−1sinxcosx+1=1−cosxsinx1+cosxsinx

sinx−cosxcosxsinx+cosxcosx=sinx−cosxsinxsinx+cosxsinx

sinx−cosxcosx⋅cosxsinx+cosx=sinx−cosxsinx⋅sinxsinx+cosx

sinx−cosxsinx+cosx=sinx−cosxsinx+cosx
hence, proved

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Which of the following ordered pairs represents the solution to the system of equations below?

expeople1 [14]

<span>-3x + 2y = 2 eq (1)

7x - 3y = 7 eq (2)

Mutiply eq (1) by 3 and eq (2) by 2:

-9x + 6y = 6

14x - 6y = 14

Add th two new equations:

-9x + 14x = 6 + 14

=> 5x = 20

=> x = 20/5

=> x = 4

Now from eq (1)

-3(4) + 2y = 2

=> 2y = 2 + 12

=> 2y = 14

=> y = 14 / 2

=> y = 7

So the ordered pair is (4,7)

Answer: option B. (4,7)
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5 0

4 years ago

PLEASE PLEASE HELP ME WITH THIS!!

sergiy2304 [10]

Answer:

first one....

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Ratios equivalent to 4:12?

Arte-miy333 [17]