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Given that A(sin θ + cos θ) + B(cos θ − sin θ) ≡ 4 sin θ, find the values of the constants A and B.

Since this must be true for all values of θ, and cos and sin are distinct functions, no non-zero multiple of cosθ could ever be equal to 4 sinθ for all values of θ. Therefore, the overall multiple of cosθ...

Answered by David B. • Maths tutor

7392 Views

please conjugate the verb "fare" in the passato remoto tense

Io Feci tu Facesti egli Fecenoi Facemmovoi Facesteessi Fecero

Answered by Alice P. • Italian tutor

1202 Views

An industrial process converts the alkene ethene into ethanol, according to the following reaction: C2H4 + H2O --> CH3CH20H. What mass of ethanol can be made from 53g of ethane, given that the water is in excess. (2 marks) (6-7 grade)

This question is all about using the mols equation question (mols = mass/molecular weight).
It's best to break it down into steps:
1) calculate the molecular masses of the compounds that are in...

Answered by Charlie S. • Chemistry tutor

8899 Views

Why do metallic compounds conduct electricity ?

metallic compounds conduct electricity as they all share the property of having a 'sea of electrons' which means that they have free floating electrons surrounding the compound. This sea of electrons is ...

Answered by Naomi E. • Chemistry tutor

2014 Views

Imagine you just came back from a ski vacation in the French Alps. Write a short paragraph (100-150 words) in French explain how your vacation was.

Cet hiver, ma famille et moi même, sommes allés skier dans les Alpes. Nous sommes allés pendant une semaine durant la période de Noël. Quand nous sommes arrivés à la station, mon frère et moi avons tout d...

Answered by Naomi E. • French tutor

2856 Views