Grade 10Trigonometry
If Sin^2A+3CosA=2 Find the value of Cos^3A+Sec^3A.Please Help Me to do the problem
If Sin^2A+3CosA=2 Find the value of
Cos^3A+Sec^3A.Please Help Me to do the problem
1 Answer
Lab Bhattacharjee
HINT:
Replace sin^2A with 1-cos^2A to form a Quadratic Eqaution in cosA
Use the fact: -1
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