Pls solve this ques of trigonometry and write a detailed solution
Pls solve this ques of trigonometry and write a detailed solution
avantika Goel , 7 Years ago
Grade 10
Trigonometry> Pls solve this ques of trigonometry and w...
1 Answers
Arun
Dear Avantika
I am writing
cos x = c
sinx = s
for simplicity
2 c^2 – s^2 = 1 / sqrt(2)
2 c^2 – 1 + c^2 = 1/ sqrt(2)
c^2 = sqrt(2) + 1 / 3sqrt(2)
similarily find sinx then put the value in expression.
Regards
Arun
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