Aurongallion2002 Aurongallion2002

06-11-2020
Mathematics

contestada

prove that cotx + coty = sin(x+y)/sin x sin y

Respuesta :

06-11-2020

Answer:

change L.H.S in terms of sin and cos

Step-by-step explanation:

so we know cot x= cos x/sin x. so similarly we have cot y = cos y / sin y. since we have our cot in terms of cosine and sine, get a L.C.M and solve it further.

Answer Link

Otras preguntas

Evaporation occurs when a liquid changes phase into a gas. What is a good example of this process? A. ice melting in a glass of water B. water boiling in a po

Which of the following words is NOT an example of a collective noun? A. squad B. team C. money D. flock

Which branch of science was newly developed after the discoveries about DNA?

What does the acronym HALT stand for? A. High-strung, anxious, labored, tense B. Help, avoid, learn, talk C. Hungry, angry, lonely, tired D. Healthy, active

Which one of the following foods is an example of a healthy dessert treat? A. Sorbet with fresh berries B. Lemon cream pie and dairy-based whipped topping C.

American agencies that mobilized the nation for war _____ the power of the government over industry. A. Decreased B. Increased C. Stabilized D. Stagnat

Vocabulary and Grammar. Anita Desai describes the furniture in the shed as defunct because it was discarded. What is another word for defunct? A. dirty B. dead

The words disclosure and concealment are A. homonyms. B. synonyms. C. antonyms. D. equivalents.

A student completed a lab report. Which correctly describes the difference between the “Question” and “Hypothesis” sections of her report?

10. One main purpose of a colon is to A. mark the boundaries between strong words. B. replace a question mark. C. show emphasis. D. introduce a list.