Eleonora
Sat Nov 09 2024
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5 answers
1122
What is sin inverse of?
I'm trying to understand the concept of sin inverse. Could someone explain what it means and how it's used in mathematics or real-world applications?
amelia_miller_designer
Wed Oct 30 2024
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7 answers
2120
What is the true value of cos?
I am trying to understand the true or exact value of cosine, not just an approximation. I want to know the precise mathematical value that defines cosine in trigonometry and its applications.
DigitalEagle
Mon Oct 28 2024
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6 answers
1311
How do you show something is not injective?
I'm trying to understand how to demonstrate that a function is not injective. I know injective means every element in the domain maps to a unique element in the codomain, but how do I prove it's not the case?
