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For all propi (i=1,2,3,....20) lying bet...

For all `prop_i (i=1,2,3,....20)` lying between `0^@` and `90^@`, it is given that, `cos prop_1+ cos prop_2+cos prop_3+.......cos prop_20=20`. What is the value (in degrees) of `(prop_1 + prop_2 +prop_3+......+ prop_20)` ?

A

`1800^(@)`

B

`20^(@)`

C

`900^(@)`

D

`0^(@)`

Text Solution

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The correct Answer is:
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