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mixas84 [53]
3 years ago
7

All prime numbers between 40 and 50

Mathematics
2 answers:
Serga [27]3 years ago
4 0
The prime numbers between 40 and 50 are:
41
43
47
NikAS [45]3 years ago
3 0
The prime numbers are: 41, 43, 47
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Without using trignometery tables find value of , cos70/sin20+cos57.cosec33 - 2cos60
Helen [10]
Here  is some thoughts on this:

cos 57  = sin (90-57) = sin 33 

so cos 57 . cosec 33 = cos 57 / sin 33 = sin 33 / sin33 = 1

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so the last 2 parts work out to 0 

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sin 20 = cos 70  so this comes to 1


so finally the answer is 1
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All of them specifically?
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