In sin(X+30)o=cos40o, find X

A. 10o

B. 20o

C. 50o

D. 60o

E. 90o

Correct Answer: Option B

**B. 20o**

Explanation

sin(X+30)o=cos40o

X+30+40=90ocomplementary angles

X=20o

In sin(X+30)o=cos40o, find X

A. 10o

B. 20o

C. 50o

D. 60o

E. 90o

Correct Answer: Option B

**B. 20o**

Explanation

sin(X+30)o=cos40o

X+30+40=90ocomplementary angles

X=20o

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