(c) (i) By first considering the case where n is a prime power, prove that n μ² (d) = ø(n) (d)' n≥ 1. d\n (ii) Verify the result of part (c)(i) when n = 20.

Without using a calculator, find the last two digits of 9(99).

3

9

8

Q1.4 1 Point V=C(R), the vector space of all real-valued continuous functions whose domain is the set R of all real numbers, and H is the subset of C(R) consisting of all of the constant functions. (e.g. the function ƒ : R → R defined by the formula f(x) = 3 for all x E R is an example of one element of H.) OH is a subspace of V. H is not a subspace of V. Save Answer

Example 3.2. Solve the following boundary value problem by ADM (Adomian decomposition) method with the boundary conditions მი მი z- = 2x²+3 дг Əz w(x, 0) = x² - 3x, θω (x, 0) = i(2x+3). ay

Pls help ASAP

Q1 4 Points In each part, determine if the given set H is a subspace of the given vector space V. Q1.1 1 Point V = R and H is the set of all vectors in R4 which have the form a b x= 1-2a for some scalars a, b. 1+3b 2 (e.g., the vector x = is an example of one element of H.) OH is a subspace of V. OH is not a subspace of V. Save Answer Q1.2 1 Point V = P3, the vector space of all polynomials whose degree is at most 3, and H = +³, 3t2}. OH is a subspace of V. OH is not a subspace of V. Save Answer Span{2+ Q1.3 1 Point V = M2x2, the vector space of all 2 x 2 matrices, and H is the subset of M2x2 consisting of all invertible 2 × 2 matrices. OH is a subspace of V. OH is not a subspace of V. Save Answer