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If cot x = 2, what is csc^2 x.

 

If sin 2x = 21/25 and cos x > sin x, what is cos x - sin x

 

What is the value of tan(arcsin(3/5) + arccos(-8/17))

 Sep 17, 2020
 #1
avatar+10319 
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If cot x = 2, what is csc^2 x.

If sin 2x = 21/25 and cos x > sin x, what is cos x - sin x

What is the value of tan(arcsin(3/5) + arccos(-8/17))

 

Hello Solid!

 

1.)

If cot x = 2, what is csc^2 x ?

\(csc^2\ x=cot^2\ x+1=2^2+1\)

\(csc^2\ x=5\)

 

2.)

If sin 2x = 21/25 and cos x > sin x, what is cos x - sin x

sin 2x = 21/25

2x=57.14°

x=28.57°

cos 28.57°> sin 28.57°

cos 28.57°- sin 28.57° = 0.87823 - 0,47823 = 0.4

 

3.)

What is the value of tan(arcsin(3/5) + arccos(-8/17))

tan(arcsin(3/5) + arccos(-8/17)) = - 0.46753

laugh  !

 Sep 17, 2020

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