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B. Trivia:
Directions: Solve the following expressions to decode the trivia below. (Numbers below the blanks are the ITEM NUMBERS on the given.)
TRIVIA:
These are the indigenous people who live mainly on the uplands of Rizal province along the Sena Moare nighlands. Their main source of livelihood depends on farming, kaingin, paid labor, vending logs and other forest commodities. Who are they?
9. (sin 60°) (cos 30°) + tan 45º =
10. 3(cot 45°) + tan 45° =
11. sin 30° + cos 60⁰ =
12 tan 45°-sin 30º =
13. 2 (sin 30°) + tan 45° (csc 30°) =
14. tan 30° (sin 60°) =
15. 4 tan 30° sin 60° =
B. Trivia:
Directions: Solve the following expressions to decode the trivia below. (Numbers below the blanks are the ITEM NUMBERS on the given.)
TRIVIA:
These are the indigenous people who live mainly on the uplands of Rizal province along the Sena Moare nighlands. Their main source of livelihood depends on farming, kaingin, paid labor, vending logs and other forest commodities. Who are they?
9. (sin 60°) (cos 30°) + tan 45º =
10. 3(cot 45°) + tan 45° =
11. sin 30° + cos 60⁰ =
12 tan 45°-sin 30º =
13. 2 (sin 30°) + tan 45° (csc 30°) =
14. tan 30° (sin 60°) =
15. 4 tan 30° sin 60° =
Answers & Comments
Verified answer
Answer:
9. (sin 60°) (cos 30°) + tan 45º
(√3/2)(3√2) + 1
√9/4 + 1
3/4 + 1
3/4 + 1×4/1×4
3/4 + 4/4
= 7/4 (D)
10. 3(cot 45°) + tan 45°
3(1) + 1
3 + 1
= 4 (U)
11. sin 30° + cos 60⁰
1/2 + 1/2
2/2
= 1 (M)
12. tan 45°-sin 30º
1 - 1/2
1×2/1×2 - 1/2
2/2 - 1/2
= 1/2 (A)
13. 2 (sin 30°) + tan 45° (csc 30°)
2(1/2) + 1 × 2
2/2 + 1 × 2
1 + 1 × 2
1 + 2
= 3 (G)
14. tan 30° (sin 60°)
√3/3 × √3/2
√9/6
3/6 ÷ 3/3
= 1/2 (A)
15. 4 tan 30° sin 60°
4 × √3/3 × √3/2
2 × √3/3 × √3
2 × √9/3
2 × 3/3
2 × 1
= 2 (T)
DECODER:
DUMAGAT