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The angle between the planes `vecr.(2hati - 3hatj + hatk)` = 1 and `vecr.(hati - hatj)` = 4 is `cos^-1((-5)/sqrt(58))`.
Concept: undefined >> undefined
The line `vecr = 2hati - 3hatj - hatk + lambda(hati - hatj + 2hatk)` lies in the plane `vecr.(3hati + hatj - hatk) + 2` = 0.
Concept: undefined >> undefined
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The vector equation of the line `(x - 5)/3 = (y + 4)/7 = (z - 6)/2` is `vecr = (5hati - 4hatj + 6hatk) + lambda(3hati + 7hatj - 2hatk)`.
Concept: undefined >> undefined
If the foot of perpendicular drawn from the origin to a plane is (5, – 3, – 2), then the equation of plane is `vecr.(5hati - 3hatj - 2hatk)` = 38.
Concept: undefined >> undefined
Write the negation of the following simple statements.
The number 17 is prime.
Concept: undefined >> undefined
Write the negation of the following simple statements.
2 + 7 = 6.
Concept: undefined >> undefined
Write the negation of the following simple statements.
Violets are blue.
Concept: undefined >> undefined
Write the negation of the following simple statements.
`sqrt(5)` is a rational number.
Concept: undefined >> undefined
Write the negation of the following simple statements.
2 is not a prime number.
Concept: undefined >> undefined
Write the negation of the following simple statements.
Every real number is an irrational number.
Concept: undefined >> undefined
Write the negation of the following simple statements.
Cow has four legs.
Concept: undefined >> undefined
Write the negation of the following simple statements.
A leap year has 366 days.
Concept: undefined >> undefined
Write the negation of the following simple statements
All similar triangles are congruent.
Concept: undefined >> undefined
Write the negation of the following simple statements
A leap year has 366 days.
Concept: undefined >> undefined
Write the negation of the following simple statements
Area of a circle is same as the perimeter of the circle.
Concept: undefined >> undefined
Let A = {1, 2, 3, 4}, B = {1, 5, 9, 11, 15, 16} and f = {(1, 5), (2, 9), (3, 1), (4, 5), (2, 11)}. Is the following true?
f is a function from A to B
Justify your answer in case.
Concept: undefined >> undefined
The following example is the null set example or not?
Set of odd natural numbers divisible by 2
Concept: undefined >> undefined
Find the values of other five trigonometric functions if `cos x = -1/2`, x lies in third quadrant.
Concept: undefined >> undefined
Find the values of other five trigonometric functions if `sin x = 3/5` x lies in second quadrant.
Concept: undefined >> undefined
Find the values of other five trigonometric function if `cot x = 3/4`, x lies in quadrant.
Concept: undefined >> undefined
