10th Class Maths Chapter wise Important bit bank Bits in Telugu

11. త్రికోణమితి (Trigonometry)

1. సరైన సమాధానము ను సూచించు అక్షరమును బ్రాకెట్టులో ఉంచుము.

1. ΔPQR లో లంబకోణం Q, ∠P = x, PQ=7cm,QR=24cm అయిన tanx =
A. 7/25
B. 24/25
C. 7/24
D. 25/24

View Answer
C. 7/24

2. TanA =
A. sinA/cosA
B. sinA.secA
C. secA/cosecA
D. all of these

View Answer
D. all of these

3. \frac { cos45 }{ sec30+cosec60 } =
A. 1/√2
B. 1/√6
C. √3/8
D. 1/√3

View Answer
C. √3/8

4. \frac { tan36 }{ cot54 }
A. O
B. 1
C. 2
D. ∞

View Answer
B. 1

5. Cos36cos54 – sin36sin54 =
A. O
B. 1
C. 2
D. ∞

View Answer
A. O

6. Sec16cosec74 – cot74tan16 =
A.O
B. 1
C. 2
D.-1

View Answer
B. 1

7. Sec 0 + tan 0 = p then Sec 0 – tan 0 =
A. p
B. 1/p
C. 1
D. O

View Answer
B. 1/p

II. ఖాళీలు పూరించుము

8. sinA = cosA అయిన A= ____________

View Answer
45

9. sin260+cos260 = ____________

View Answer
1

10. sinA= 3/5 అయిన tanA =

View Answer
3/4

11. tanA.cotA – COSA.secA = ____________

View Answer
0

12.Cos(90-A) = ____________

View Answer
sinA

13. Cot2A – cosec2A = ____________

View Answer
-1

14. Tan30, tan45, tan60 ev ____________ శ్రేడిలో వుంటాయి.

View Answer
గుణ

15.  \sqrt { { sin }^{ 2 }A+{ cos }^{ 2 }A+{ tan }^{ 2 }A } = ________

View Answer
secA
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