sin² 30 + cos² 60 - sin² 45 = ?
Answers
Answered by
0
Answer:
value of sin 30 is 1/2, cos 60 is 1/2 and sin 45 is1/√2
now we put the value
(1/2) ^2+(1/2) ^2-(1/√2) ^2
1/4+1/4-1/2
2/4-1/2
2-1/2
3/2 is correct answer
Answered by
0
Answer:
0
Step-by-step explanation:
sin 30° =
cos 60° =
sin 45° = √2 / 2
(1/2)² + (1/2)² - (√2/2)²
1/4 + 1/4 - 1/2 = 0
sin² 30 + cos² 60 - sin² 45 = 0
Similar questions