kellyd
kellyd
05-09-2016
Mathematics
contestada
How do i solve Sec^2x+2secx=0
Respuesta :
nobillionaireNobley
nobillionaireNobley
05-09-2016
Let sec x = a
sec^2 x + 2sec x = 0
=> a^2 + 2a = 0
=> a(a + 2) = 0
=> a = 0 or a + 2 = 0
a = -2
i.e. sec x = -2
1/cos x = -2
-2cos x = 1
cos x = -1/2
x = cos^(-1) (-1/2) = 2pi/3
Answer Link
lillianc8182
lillianc8182
10-10-2020
Answer:
a on edge2020
Step-by-step explanation:
took the test and got it right
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
The federal government decides to offset a $50 billion decline in business spending. The government could spend $50 billion directly on projects, or it could re
8. Please read the following sentence to answer the question. Sonya, my Mother, owns a bakery, and she makes the best brownies in town. Is the word mothe
Andys total bill for lunch is 20 dollars.the cost of the drink is 15 percent of the total bill and the ref is the cost of the food.what percent of the total bil
Fossil fuels are the compressed remains of ancient organisms like plants or dinosaurs. they cannot be recycled. once they are used, they are gone. which of thes
The ���yeast disease��� in humans usually refers to a. a form of coccidioidomycosis. b. the infection due to candida albicans. c. infection with saccharomyce
An asset costing $50,000.00 with a residual value of $5,000.00 has an estimated useful life of 5 years. Using the declining-balance method at twice the straight
increase 400 by 37%
What is cognitive behavior?
which is a way that the elements are groupef on the periodic table
Discuss three ways in which sport can support nation building
