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R. Lasyapriya
Subject: Maths
, asked on 23/4/18
Prove it is true or false
If true please state the reason in brief .
Q.20. If A = 0; then sin 2A = 2 sin A. Is it true?
Answer
1
R. Lasyapriya
Subject: Maths
, asked on 23/4/18
please dont send any link for this question and solve the following -
Ques.> if 7x= coseco and 7/x= coto find the value of [x2- 1/x2]
Answer
2
R. Lasyapriya
Subject: Maths
, asked on 23/4/18
if 5x= seco and 5/x=tabo find the value of 5[ x
^{2 }
- 1/x
^{2}
]
Answer
2
R. Lasyapriya
Subject: Maths
, asked on 22/4/18
Solve this sum.
Q. If
$cosec\theta =2xandcot\theta =\frac{2}{x}$
, find the value of
$2\left({x}^{2}-\frac{1}{{x}^{2}}\right)$
.
Answer
1
R. Lasyapriya
Subject: Maths
, asked on 22/4/18
Solve this sum
Q.
In the given figure, AD = 4 cm, BD = 3 cm & BC = 12 cm, find cot
$\theta $
.
Answer
3
R. Lasyapriya
Subject: Maths
, asked on 21/4/18
Please choose the correct option and explain why that option is correct . Questions 52 and 53. Answer it as soon as possible.
Answer
3
Hmmmm
Subject: Maths
, asked on 16/4/18
If asintheta+ bcostheta =n
N ,acostheta+ bsintheta = m
Prove :- m?+n?= a?+b?
Answer
1
Aaradhya Verma
Subject: Maths
, asked on 16/4/18
why sin theta = p/h.
Answer
3
R. Lasyapriya
Subject: Maths
, asked on 12/4/18
Q6 Please my maths test tmrw please help me...
Answer
3
Pranav
Subject: Maths
, asked on 8/4/18
cos
^{2}
(45+theta)+cos
^{2}
(45-theta)
/
tan(60+theta)tan(30+theta)
Answer
1
Hmmmm
Subject: Maths
, asked on 3/4/18
Need answers ....QUICKLY
Answer
2
Raghav Singh
Subject: Maths
, asked on 30/3/18
Please explain the solution.
Answer
3
Champ Jee
Subject: Maths
, asked on 29/3/18
Q11. Logic says answer is 0 degree because theta= 90 degree. But how to show in paper or prove mathmeatically?
$\mathbf{11}\mathbf{.}Ifsin{\theta}_{1}+\mathrm{sin}{\theta}_{2}+\mathrm{sin}{\theta}_{3}=3,0{\theta}_{1},{\theta}_{2},{\theta}_{3}\le 90\xb0.Findthevalueof\mathrm{cos}{\theta}_{1}+\mathrm{cos}{\theta}_{2}+\mathrm{cos}{\theta}_{3}.$
Answer
1
Dakshesh Sharma
Subject: Maths
, asked on 28/3/18
Question 2 (a) part
Q2. (a) . From the figure (i) given below, find the values of :
(i) sin B (ii) cos C (iii) sin B + sin C (iv) sin B cos C + sin C cos B.
(b) From the figure (2) given below, find the values of:
(i) tan x (ii) cos y (iii) cosec
^{2}
^{ }
y – cot
^{2}
y (iv)
$\frac{5}{\mathrm{sin}x}+\frac{3}{\mathrm{sin}{\displaystyle}{\displaystyle y}}-3coty$
.
Answer
2
Shweta Verma
Subject: Maths
, asked on 28/3/18
ABCD is rectagle . if AD is 14cm, AB is 30cm, BC is xy, DC is x+y then find the value of x and y.
Answer
1
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What are you looking for?

Q.20. If A = 0; then sin 2A = 2 sin A. Is it true?

Ques.> if 7x= coseco and 7/x= coto find the value of [x2- 1/x2]

^{2 }- 1/x^{2}]Q. If $cosec\theta =2xandcot\theta =\frac{2}{x}$, find the value of $2\left({x}^{2}-\frac{1}{{x}^{2}}\right)$.

Q.In the given figure, AD = 4 cm, BD = 3 cm & BC = 12 cm, find cot $\theta $.N ,acostheta+ bsintheta = m

Prove :- m?+n?= a?+b?

^{2}(45+theta)+cos^{2}(45-theta)/tan(60+theta)tan(30+theta)$\mathbf{11}\mathbf{.}Ifsin{\theta}_{1}+\mathrm{sin}{\theta}_{2}+\mathrm{sin}{\theta}_{3}=3,0{\theta}_{1},{\theta}_{2},{\theta}_{3}\le 90\xb0.Findthevalueof\mathrm{cos}{\theta}_{1}+\mathrm{cos}{\theta}_{2}+\mathrm{cos}{\theta}_{3}.$

Q2. (a) . From the figure (i) given below, find the values of :

(i) sin B (ii) cos C (iii) sin B + sin C (iv) sin B cos C + sin C cos B.

(b) From the figure (2) given below, find the values of:

(i) tan x (ii) cos y (iii) cosec

^{2}^{ }y – cot^{2}y (iv) $\frac{5}{\mathrm{sin}x}+\frac{3}{\mathrm{sin}{\displaystyle}{\displaystyle y}}-3coty$.