Using trigonometric identities, and equality is reached, hence the equality is proved.
<h3>Which trigonometric identity are used to solve this question?</h3>
These three identities are used:
.
.
Hence:
Equality is reached, hence the equality is proved.
More can be learned about trigonometric identities at brainly.com/question/24496175
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Answer:
1200cm
Step-by-step explanation: this is the suface area:)
First you make -1 3/5 into an improper fraction, -8/5
Since you're dividing a fraction by another fraction you'd change it to -8/5 × -3/2
(Don't forget to flip -2/3 to -3/2)
when you multiply it it'd be 24/10
(It is a positive number because when you multiply two negative numbers it becomes positive)
24/10 as a mixed fraction is 2 1/5
Answer:
V=4180
volume = length x width x height
28x+20y because I multiply 7x with 4, and 5x with 4
