. The value of cos 9º - sin 9º is
A: - √5-5 /2
B: 5 + √5/4
C: 1/2√5-√5
D: none of these.
Best Answer
Explanation
We will have,
Final Answer
Option C is the correct choice.i.e 1/2×√5-√5
Related questions
A: - √5-5 /2
B: 5 + √5/4
C: 1/2√5-√5
D: none of these.
Explanation
We will have,
Final Answer
Option C is the correct choice.i.e 1/2×√5-√5
