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Question
The value of: cosec 40° cos 50° + sin 50° sec 40° is ______.
Options
1
2
3
0
MCQ
Fill in the Blanks
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Solution
The value of: cosec 40° cos 50° + sin 50° sec 40° is 2.
Explanation:
Using complementary angle conversions (csc 40° = sec 50° and cos 50° = sin 40°):
sec 50° cos 50° + sin 50° csc 50°
= 1 + 1
= 2
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