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The value of the expression:sin21° + sin211° + sin221° + sin231° + sin241° + sin245° + sin249° + sin259° + sin269° + sin279° + sin289° is?
Statement: A video by Chinese police giving advice on how to deal with a knife attack has gone viral. While suggesting what to do in the event of an attack, an officer responds by running away and screaming, "Help! Police officer!". Which of the following objection(s) may not be a probable reason(s) for the above-taken step by the Chinese police? I. It reportedly was aimed at telling citizens they should not seek the help of authorities when confronted by an attacker. II. It reportedly was aimed at telling citizens they should seek the help of authorities when confronted by an attacker. III. It reportedly was aimed at telling citizens they should divert the attacker by screaming and then attack the attacker. IV. It reportedly was aimed at telling citizens they should seek the help of police to nab the attacker and then attack him with the help of police authorities.
What is the value of [sin (y – z) + sin (y + z) + 2 sin y]/[sin (x – z) + sin (x + z) + 2 sin x]?
Evaluate the following:
$$\frac{{\cos 2\theta \cdot \cos 3\theta - \cos 2\theta \cdot \cos 7\theta + \cos \theta \cdot \cos 10\theta }}{{\sin 4\theta \cdot \sin 3\theta - \sin 2\theta \cdot \sin 5\theta + \sin 4\theta \cdot \sin 7\theta }}$$
In a class of five students P, Q, R, S and T, only one student is known to have copied in the exam. The disciplinary committee has investigated the situation and recorded the statements from the students as given below. Statement of P: R has copied in the exam. Statement of Q: S has copied in the exam. Statement of R: P did not copy in the exam. Statement of S: Only one of us is telling the truth. Statement of T: R is telling the truth. The investigating team had authentic information that S never lies. Based on the information given above, the person who has copied in the exam is
Telling lies --- a great sin.
Choose the best option to complete the sentence : Telling lies--- a great sin.
Telling lies _________ a great sin.
Telling lies _____ a great sin
What is the value of sin 0° + sin 10° + sin 20° + sin 30° + ⋯ + sin 360°?