Mathematics: If csc theta = -2.06, find sec(theta-pi/2) Find the exact value sin pi/ 18cos pi/9 + cos pi/18sin pi/ 9 Please help me soon, i dont need an explanation but it would be very helpful or if you know a website that can help me i will be very appreciative!

Hi there! :)Step-by-step explanation:Slope is -2/3Final answer is -2/3Hope this helps!Thanks!-CharlieHave a nice day! :):D...

If csc theta = -2.06, find sec(theta-pi/2) Find

shahfaisal

28.01.2022

a) sec (θ -π/2) = co secθ

b) $sin(\frac{\pi }{18} ) cos (\frac{\pi }{9})+ cos(\frac{\pi }{18} ) sin (\frac{\pi }{9} )=\frac{1}{2}$

Step-by-step explanation:

Given co sec θ = -2.06

sec (θ -π/2) = sec(π/2 -θ) = co secθ

we will use formula

sin A cos B + Cos A sin B = sin(A+B)

Given $sin(\frac{\pi }{18} ) cos (\frac{\pi }{9})+ cos(\frac{\pi }{18} ) sin (\frac{\pi }{9} )$

= $Sin(\frac{\pi }{18} +\frac{\pi }{9} )$

= $sin(\frac{\pi+2\pi }{18} ) = sin(\frac{3\pi }{18})$

= $sin(\frac{\pi }{6})$

= $\frac{1}{2}$

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Adot23x

25.09.2021

Hi there! :)

Step-by-step explanation:

$Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}$

$\frac{5-3}{(-2)-1}=\frac{2}{-3}$

Slope is -2/3

Final answer is -2/3

Hope this helps!

Thanks!

-Charlie

Have a nice day! :)

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