math
Proving Trigonometric Identities 1. sec^2x + csc^2x= (sec^2 x)(csc^2 x) 2. sin ^3 x / sin x - cos 3x / cos x = 2 3. 1- cos x/ sin x= sin x/ 1+ cos x 4. 2 sin x cos ^2 (x/2)- 1/x sin (2x) = sinx 5. cos 2 x + sin x/ 1- sin x= 1+ 2 sin x
Statistic
IQs among undergraduates at Mountain Tech are approximately normally distributed. The mean undergraduate IQ is 110. About 95% of undergraduates have IQs between 100 and 120. The standard deviation of these IQs is about A. 5 B. 10 C. 15 D. 20 E. 25
chemistry
If the freezing point of the solution had been incorrectly read 0.3degrees C lower than the true freezing point, would the calculated molar mass of the solute be too high or too low? Explain.
math
what is the purpose of using fraction strips and a 1 strip
Calculus
thanks a ton.
Calculus
A solid is formed by adjoining one hemisphere to the top of a cylinder. The total volume of the solid is V (treat as a constant) cubic centimeters. Find the minimum surface area of the solid in terms of V.
Mathematics
Find the maximum or minimum values of sin x+sin y+sin(x+y)
biology
What is the function of macronucleus and micronucleus in a paramecium?
biology
Why are multicellular protista( seaweed) not classified in the plant kingdom?
English
1. B 2. D 3. B 4. B 5. A 6.C those were wrong so yeah I dont know
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