If Sin A 4 5 And Cos B 12 13 Where A And B Lie In First And Third Quadrant
1) 56/65 2) -56/65 3) 16/65 4) -16/65 Answer: (4) -16/65 Solution: Given, sin A = 4/5 {A lies in... View Article
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If A Plus B 225 Then Cot A 1 Cot A Cot B 1 Cot B Equals To
1) 1 2) -1 3) 0 4) 1/2 Answer: (4) 1/2 Solution: Given, A + B = 225° Taking “ cot”... View Article
Tan 75 Degrees Minus Cot 75 Degrees Equals To
1) 2√3 2) 2 + √3 3) 2 – √3 4) None of these Answer: (1) 2√3 Solution: tan 75°... View Article
1 4 Root3 Cos 23 Degrees Minus Sin 23 Degrees Equal To
1) cos 43° 2) cos 7° 3) cos 53° 4) None of these Answer: (4) None of these Solution: (1/4)... View Article
Sin Beta Plus Gamma Minus Alpha Plus Sin Gamma Plus Alpha Minus Beta
1) 2 sin α sin β sin γ 2) 4 sin α sin β sin γ 3) sin α sin... View Article
Cos 2 Alpha Plus Cos 2 Alpha 120 Plus Cos 2 Alpha 120 Is
1) 3/2 2) 1 3) 1/2 4) 0 Answer: (1) 3/2 Solution: cos2α + cos2(α + 120°) + cos2(α –... View Article
What Does The Central Limit Theorem Require
Solution: The Central Limit Theorem is the sampling distribution of the sampling means approaches a normal distribution, if the sample... View Article
What Is A Good Sample Size For T Test
Solution: Since the distributions for small samples are not normal, a t-test is necessary for small samples (size n<30). The... View Article
How Do You Know If A Sample Size Is Large Enough
Solution: Large enough sample condition test is used to know if a sample size is large enough. The test is... View Article
Which Test Is Used When Sample Size Is More Than 30
Solution: The z-test is best used for greater-than-30 samples. Also Read: What is z Score? Register with BYJU’S – The... View Article
How Do You Know Statistical Significance
Solution: Statistical significance is a way of Mathematically proving that a certain statistic is reliable. Statistical hypothesis testing is helpful... View Article
How Do You Interpret Mean And Standard Deviation
Solution: Mean to describe the sample with a single value that represents the center of the data. The standard deviation... View Article
What Is The Purpose Of A Sampling Distribution
Solution: A sample distribution is a probability distribution of a statistic over many random samples from a particular population. There... View Article
Why Cant You Take The Logarithm Of A Negative Number
Solution: The logarithm of a negative number in base 10 is turned to complex numbers. To solve such equations we... View Article
What Does It Mean When A Demand Curve Is A Rectangular Hyperbola
Solution: The demand curve is a rectangular hyperbola, it shows that elasticity of demand is equal to unity at all... View Article
How Do You Tell If A Function Is Odd Even Or Neither
Solution: The definition of even and odd functions: Even function: A function, f(x) is even if f(x) = f(-x) Odd... View Article
How Do You Find The Equation Of A Parabola With 3 Points
Solution: The general equation of parabola is y = ax2 + bx + c …(1) Let (x1, y1), (x2, y2)... View Article
How Can We Prepare 01 N Hcl Solution
Solution: Molar mass for HCL = 36.4611 g/mol The volume will be in 1 litre. HCL specific gravity is 1.189.... View Article
What Molarity Is 10 Naoh
Solution: Molarity of 10%(w/v) of NaOH solution: Number of moles of solute divided by volume of solution. 10/40 = 1/4... View Article
Why Does Scandium Not Show Plus2 Oxidation State
Solution: Oxidation state of scandium is +3. Scandium does not show +2 oxidation state as it requires high energy for... View Article
