Question:
What is the value of sin²30° + cos²60° + tan²45°?
sin²30° + cos²60° + tan²45° का मान क्या है?
Options:
- a) 1.5
- b) 2
- c) 1
- d) 2.5
- a) 1.5
- b) 2
- c) 1
- d) 2.5
correct answer : b)
Explanation:
sin30°=1/2, cos60°=1/2, tan45°=1. sin²30°=(1/4), cos²60°=(1/4), tan²45°=1. Sum = 1/4+1/4+1 = 1/2+1 = 3/2? Wait: 1/4+1/4=1/2, +1=3/2=1.5. Answer is (a) 1.5.
sin30°=1/2, cos60°=1/2, tan45°=1। sin²30°=1/4, cos²60°=1/4, tan²45°=1। योग = 1/4+1/4+1 = 1.5। उत्तर: 1.5।