For what value of a is u (x.t) =e-cos(ax) a solution of u=u,? XX O a. 2 O b. none of the above O c. 3 O d. 1 O e. 0

Q: cos(iz) = 0 iff Select one: Зп + kT. a. 1 b. z = = + k. 2 T C. Z = + kT. 2 O d. z = k.

A: cosπz=0

Q: What is S² S 2 9. b. C. k|x EN d. = www 2 sin 0 1 r cos² 0 drd0?

A:

Q: 1. The expression sin(x +y) +sin(x-y) is equal to A. 2 sinx siny B. 2 sinx cosy C. 2 cosx siny D.…

A:

Q: Evaluate Σ/ n=0 pr+1 1 1 + x² dr.

A: Let's solve given summation integration.

Q: Which expression is equivalent to cscαsin(α−β) for all values of α and β for which csc α sin(α−β) is…

A: Given: Which expression is equivalent to cscαsin(α−β) for all values of α and β for which csc α…

Q: 5. 2 cos (0)+3cos (0)+1=0

A:

Q: Wa aties will swhve r A in 40 Co40 4. co 4 40

A: In the given triangle , the length of the side adjacent to 40 degree is 5 The hypotenuse is x We…

Q: Evaluate cos(0) when 0 %3D

A: To evaluate the value of cos theta.

Q: 3. SOLVE FOR A, ON [ 0, 2 PI): COS (A) = - 1

A:

Q: where is unknown. and X₁, X2,..., Xnd Exp(0) Ho: 0= 2.0 vs. Ha: 02.0 Ô =X 2.2 n 100

A: Given  n=100, sample mean x̄=2.2  Level of significance ɑ=0.05

Q: If y = 8 sin 2x cos 2x, then A 128 sin 2x cos 2x C. 64 sin 4x B. 128 sin 6x D. 8 sin 2x cos 4x

A: If , then to find .