4 (e)
sin^8 x - cos^8 x
= (sin^4 x + cos^4 x)(sin^4 x - cos^4 x)
= (sin^4 x + cos^4 x)(sin^2 x - cos^2x)(sin^2 x +cos^2 x)
= (sin^4x + cos^4 x)( sin^2 x- cos^2 x)
Sorry I cant do 4 (d).
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Answer: Good luck buddy
Step-by-step explanation:
The values of x and y are 99 and 343
<h3>The HCF</h3>
The HCF of numbers is the highest common factors of the numbers
<h3>The LCM</h3>
The LCM of numbers is the lowest common multiple of the numbers
The HCF and the LCM are given as:


Multiply the HCF and the LCM


The product of the numbers x and y equals the product of the HCF and the LCM.
So, we have:

<h3>Prime Factors</h3>
Express 33957 as a prime factor

Rewrite the equation as


By comparison:


Hence, the values of x and y are 99 and 343
Read more about HCF and LCM at:
brainly.com/question/420337