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Prove that
sin x+ cos x/ sin x – cos x + sin x – cos x/ sin x + cos x = 2/ 1-2cos2 x ​

By Amelia

Prove that
sin x+ cos x/ sin x – cos x + sin x – cos x/ sin x + cos x = 2/ 1-2cos2 x ​

About the author
Amelia

Find the sum of 400 and 500 and subtract it from 1000 answer​

From the digits 0,1,2,3,4,5,6how many 4 digit numbers with distinct digits can be constructed?How many of these are even numbers?​

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