Exams & Certification

Why doesn’t sin^-1(sin(3pi/4)) not equal 3pi/4 when y=sin x and y+sin^-1x are inverses? Is it because its an odd function? The Correct Answer and Explanation is : The reason why (\sin^{-1}(\sin(\frac{3\pi}{4}))) does not equal (\frac{3\pi}{4}) is not because the sine function is odd, but because the range of the inverse sine function, (\sin^{-1}), is limited […]

A. sin (3pi/2 – 3pi/4) can be expanded to: A. cos 3pi/2 cos 3pi/4 + sin 3pi/2 cos 3pi/4 B. sin 3pi/2 cos 3pi/4 – cos 3pi/2 sin 3pi/4 C. cos 3pi/2 cos 3pi/4 – sin 3pi/2 sin 3pi/4 D. sin 3pi/2 cos 3pi/4 + cos 3pi/2 sin 3pi/4 B. Thick expression is obtained on

What principles guided President Hoover’s response to the Great Depression, and how did this restrict his ability to help the American people? Do you see any similarities between Hoover’s response to the Depression and Trump’s response to our current economic crisis? Explain your answer The Correct Answer and Explanation is : Correct Answer: President Herbert

Which sentence uses commas CORRECTLY? A) We decided to stay indoors since it was a hot, windy, day. B) We decided to stay indoors since it was a hot, and windy day. C) We decided to go to the beach because it was a bright, sunny day. D) We decided, to go to the beach,

What best describes the following? A)The Fischer projection of L-fructose and an anomer of D-fructose written in the Haworth projection B)The Haworth projection of D-fructose and both anomers of D-fructose written in the Fischer projection C)The Fischer projection of L-fructose and both anomers of L-fructose written in the Haworth projection D) The Fischer projection of

Classify each statement as an example of adhesion, cohesion, or surface tension. A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface.adhesionWater molecules cling to plant cell walls.Water molecules are attracted to each other.cohesionA water strider runs across a pond without breaking the surface.Water

What is the lewis structure of the following molecules? A. CH3NH2 (whose skeletal structure is H3CNH2) B. CH3CO2CH3 (whose skeletal structure is H3CCOOCH3, with both O atoms attached to the second C) C. NH2CO2H (whose skeletal structure is H2NCOOH, with both O atoms attached to C) The Correct Answer and Explanation is : Let’s explore

Draw the structure of NCNH2, where the atoms are connected as shown in the formula. Minimize formal charges and include lone pairs. Sketch the following molecule: NH2CO2H (skeletal structure H2NCOOH, both O atoms attached to C). The Correct Answer and Explanation is : Let’s start by analyzing and drawing the structures for both NCNH₂ and

 Most memory on the motherboard is RAM True/ False The Correct Answer and Explanation is : False The most common type of memory on a motherboard is not SRAM (Static Random Access Memory) but DRAM (Dynamic Random Access Memory). SRAM and DRAM are both types of RAM (Random Access Memory), but they serve different purposes

Your PC screen looks like this: Which part would you test? GPU RAM O CPU O O O APU PSU Your manager asks you to get details on a computer crash. What Windows Administration Tool could you use? Event Viewer Performance Monitor Log Viewer Windows Memory Diagnostic System Information A customer opened a file attachment,