subject
Mathematics, 27.05.2020 18:01 biggy54

In a triangle prove that


\cos( \alpha ) + \cos( \beta ) + \cos( \gamma ) = 4 \times \sin( \frac{ \alpha }{2} ) \times \sin( \frac{ \beta }{2} ) \times \sin( \frac{ \gamma }{2} ) + 1
In a triangle prove that

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.
Answers: 1
question
Mathematics, 21.06.2019 17:40
Polynomial that can be factored as (3x-4)(3x+4)
Answers: 1
question
Mathematics, 21.06.2019 23:00
Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?
Answers: 1
question
Mathematics, 22.06.2019 02:40
Which of the following values have 3 significant figures? check all that apply. a. 10.1 b. 100.05 c. 120 d. 129
Answers: 1
You know the right answer?
In a triangle prove that


...
Questions
question
Chemistry, 09.07.2021 14:00
question
Mathematics, 09.07.2021 14:00
question
Mathematics, 09.07.2021 14:00
Questions on the website: 13722359