All categories

3 years ago

Cos^4 A/2 - sin^4 A/2 =cos A

Mathematics

1 answer:

jekas [21]3 years ago

6 0

Step-by-step explanation:

ive used simple the formula. hope u understand

You might be interested in

Simplify completely. Leave your answer in exponential form:

stich3 [128]

Answer:

${2}^{3} \times {4}^{3} \times 9$

Step-by-step explanation:

Using the division rule when dealing with exponents

$\frac{b {}^{h} }{b {}^{j} } = b {}^{h - j}$

meaning that when we divide exponents that have the same base but different powers we can subtract the power of the bottom exponent from the top exponet.

so using that we are going to do 2, 4 and 9

$\frac{2 {}^{8} }{ {2}^{5} } = {2}^{8 - 5 = 3 \: \: \: \: \: 2 {}^{3} }$

$\frac{ {4}^{4} }{ {4}^{1} } = {4}^{4 - 1} \: \: \: {4}^{3}$

$\frac{9 {}^{9} }{ {9}^{8} } = {9}^{9 - 8} = 9 {}^{1}$

Combine all the terms and we get

${2}^{3} \times 4 {}^{3} \times {9}$

4 0

3 years ago

Rewrite as a quotient of two base - 9 logarithms. write your answer in simplest form log 17 =<br>

4vir4ik [10]

Answer:

$\frac{log_{9}17 }{log_{9}10 }$

Step-by-step explanation:

Using the change of base rule for logarithms

$log_{b}$ x = $\frac{log_{c}x }{log_{c}b }$ ( where c is the new base )

Given

log 17 , that is $log_{10}$ 17 , then

$log_{10}$ 17 = $\frac{log_{9}17 }{log_{9}10 }$

8 0

4 years ago

SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU Brainly!!!!! ONLY IF ITS RIGHT

Mrrafil [7]

Answer:

B. 467

A yellow ball will be selected about 467 times.

6 0

3 years ago

Peremiter it’s not hard! :D

iogann1982 [59]

Add all of the sides together

9+24+9+15+15

33+24+15

57+15

= 72 feet

Answer is 72 feet - D

3 0

3 years ago

Read 2 more answers

diketahui luas permukaan kubus 864 cm2. perbandingan rusuk kubus dan p balok 3 : 4 perbandingan p l dan tinggi 4:3:2 luas permuk

Kryger [21]

S2= 864/6
s = = 12 cm
p = 4/3 x 12 = 16 cm
t = 2/4 x 16 = 8 cm
l= 3/4x 16 = 12 cm

lp= 2 (pl+pt+lt)
= 2 (16 x 12 + 16 x 8 + 12 x8)
= 2 (192+128+96) = 832cm²

3 0

4 years ago

Cos^4 A/2 - sin^4 A/2 =cos A​

Cos^4 A/2 - sin^4 A/2 =cos A