<span> -1/4 (-6/11)
To find the product, all you have to do is multiply the numerator by the other numerator and the denominator by the other denominator
6/44
Simplify
Final Answer: 3/22
*Note: Whenever you multiply or divide a negative number by another negative number, it automatically becomes a positive number.</span>
To calculate the area just multiply all the sides together so it's 5x3x6 and the answer is 90
First we use sin(a+b)= sinacosb+sinbcosa
and cos(a+b)=cosa cosb -sinasinb
tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)
and sin(x+pi/2) = sinxcospi/2 + sinpi/2cosx =cosx,
<span>cos(x+pi/2) = cosxcospi/2- sinxsinpi/2= - sinx,
</span> because <span>cospi/2 =0, </span>and <span>sinpi/2=1
</span><span>=tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)= cosx / -sinx = -1/tanx = -cotx
</span>from where <span>tan(x+pi/2)=-cotx</span>
I hope you can read cursive and I hope this helps! (:
