Establish the identity.(1 - cos x)(1 + cos x) = sin2x
What will be an ideal response?
(1 - cos x)(1 + cos x) = 1 - cos2x = sin2x
Mathematics
You might also like to view...
Provide an appropriate response.Find the range of the function y = f(x) = 4x2 - 16x + 1.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Write out the first three terms and the last term of the arithmetic sequence.
A. -5 + 0 + 5 + . . . + 55 B. 0 + 5 + 10 + . . . + 55 C. -5 - 0 + 5 - . . . + 55 D. 0 + 20 + 70 + . . . + 295
Mathematics
Solve the problem.The perimeter of a triangle is 60 cm. The triangle is isosceles now, but if its base were lengthened by 5 cm and each leg were shortened by 7 cm, it would be equilateral. Find the length of the base of the original triangle.
A. 11 cm B. 12 cm C. 17 cm D. 24 cm
Mathematics
Find the sum.
+ 
A. 
B. 
C. 
D. 
Mathematics