Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

can you say the answer for my holiday assignment .i can't find the answer can someone help me  trignomentry-uses ratios ,special angles and identities  
Asked by SriVaishnavi | 02 Oct, 2018, 09:30: AM
answered-by-expert Expert Answer
trigonometry  is used in oceanography in calculating the height of tides in oceans. The sine and cosine functions are fundamental to the theory of periodic functions, those that describe the sound and light waves. Also trigonometry has its applications in satellite systems.
 
Ratios:
begin mathsize 18px style sin space straight x space equals space fraction numerator 1 over denominator cosec space straight x end fraction cos space straight x space equals space fraction numerator 1 over denominator sec space straight x end fraction tan space straight x space equals fraction numerator sin space straight x over denominator cos space straight x end fraction cot space straight x space equals fraction numerator 1 over denominator tan space straight x end fraction end style

special angles:
 
 
identities:
cos2x+sin2x=1
1+tan2x=sec2x
1+ cot2x = cosec2x
Answered by Arun | 04 Oct, 2018, 11:01: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Maths
3√5+√3/√5-√3
Asked by gulshanelectronics2017 | 15 Apr, 2024, 05:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
find the value of n in 7^2n+1÷49=7^3
Asked by tripura78839 | 12 Apr, 2024, 09:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
how to solve it
question image
Asked by singhanjali0199 | 12 Apr, 2024, 08:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
√2x^2+3x+√2
question image
Asked by killerstealer593 | 11 Apr, 2024, 07:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
x²-22x+120
Asked by rson0295 | 01 Apr, 2024, 08:55: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Draw the graph of the equation of line 2x + 3y = 6. Write the co ordinates of the point where the line intersects X-axis and Y-axis.
question image
Asked by saee.shinde3069 | 31 Mar, 2024, 10:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
locate √2 on number line
Asked by rathoreraj7296 | 31 Mar, 2024, 08:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
ab is diameter of circle with centre o . CD is a code equal to the radius of the circle a c and b b when extend intersect at the point e prove that angle a e b is equals to 60 degree
Asked by divyanshibirla037 | 29 Mar, 2024, 03:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
5x=25 find x.
Asked by dhokwaltushar | 25 Mar, 2024, 04:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
expand(2x+1)³
Asked by durgavenkatlakshmi1 | 20 Mar, 2024, 03:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×