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=3 sin theta + 5 cos theta= 5 Now by squaring both side = 97 squared theta + 25 cos theta + 30 sin theta cos theta= 25 = 9 ( 1 - cos²theta) + 25(1-sin² theta)+30 cos theta into sin theta = 25 = 9 - 9 cos squared theta + 25 - 25 sin square theta + 30 sin theta into cos theta= 25 = 9 + 25 - ( 9 cos square theta + 25 sin square theta minus 30 sin theta into cos theta)=25 = -(9 cos square theta + 25 sin square theta minus 30 sin theta into cos theta) = 25-34 = (3 cos theta - 5 sin theta )²=9 = 3 cos theta- sin theta=+,-3

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Find the sum of first 25th tems of an AP whose nth term can be shown as Tn= 2-3n

Posted by Abhishek Jain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Abhishek Jain 6 years, 10 months ago

How to paste image

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Honey ??? 6 years, 10 months ago

Take n=1 you will get first term then put n=2 u will get second term then find d and solve it

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Honey ??? 6 years, 10 months ago

-925

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Abhishek Jain 6 years, 10 months ago

Full solution

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prove that:sec50•sin40•+cos40•cosec50•=2

Posted by Kunjan Phukan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

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Any ask Questions of Trigonometry

Posted by Mr. Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Trigonometry all all formula define?

Posted by Abdul Rahman 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

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Prove that (1+sinA-cosA)²/(1+sinA+cosA)²=1-cosA/1+cosA

Posted by Nikita Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Sneha Singh 6 years, 10 months ago

=(1+sin²A+cos²A+2sinA-2sinA.cosA-2cosA)/(1+sin²A+cos²A+2sinA+2sinA.cosA+2cosA) = (1+1+2sinA-2sinA.cosA-2cosA)/(1+1+2sinA+2sinA.cosA+2cosA) = (2+2sinA-2sinA.cosA-2cosA)/(2+2sinA+2sinA.cosA+2cosA) = {2(1+sinA)(1-cosA)}/{2(1+sinA)(1+cosA) = 1-cosA/1+cosA

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Mam for my pre board of maths can l solve only ncert each and ever question l will prepare from ncert. There is no need to do anything else or this is not enough

Posted by Esha Kochhar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anshika / U Can Call Me Alien ????? 6 years, 10 months ago

Do NCERT 1st atleast 2 to 3 times jab tak sare answer correct nhi aate then other references book ok

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If 3x=secA and 3/x=tanA, then find the value of 9(x²-1/x²)

Posted by Nikita Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

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Ask me difficult ques. From volume surface area??

Posted by Science Genius 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Science Genius 6 years, 10 months ago

Pl....ask I will surely ans.

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Find the 20th term the last term of AP is 3,8,13-------,253

Posted by Vardichandra Baheti 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Sneha Singh 6 years, 10 months ago

Use the formula {l-(n-1)d} 253-19d =253-19×5 =253-95 = 158

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Jatt Putt Aryan???? 6 years, 10 months ago

A1( from last)-19d ............253-19(5)........253-95.........158

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जय बाबा मोहन राम की।। गुर्जर कबीर।। Bansal 6 years, 10 months ago

158......

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Find lcm of number whose prime factorisation are expressible as

Posted by Ajay Jaat 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Puja Sahoo? 6 years, 10 months ago

Complete your question............

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2 or 3 marks questions of trigo

Posted by Jatt Putt Aryan???? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

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Any 1 pls give me answer

Posted by Shahnawaz Hussain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashish Roy 6 years, 10 months ago

Where's the question BTW

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Pls give ans in hindi

Posted by Shahnawaz Hussain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

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2 no ka hcf or lcm 9 and 459 h then 1 number is 27 so find the second number

Posted by Shahnawaz Hussain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Puja Sahoo? 6 years, 10 months ago

Ap other no. Kuch bhi man lo, x, a, b......ya or kuch

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Puja Sahoo? 6 years, 10 months ago

* l.c.m(a,b) × h.c.f(a,b) = a×b

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Puja Sahoo? 6 years, 10 months ago

Ap, fundamental theorem of arithmetic apply kro. i.e. l.c.m × h.c.f =...apko answer mil jayega........

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Jatt Putt Aryan???? 6 years, 10 months ago

L.c.m × h.c.f= do number ka multiply..........9×459=27× other number........by solve it we get other number is 153

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How many solutions will pair of equations y=2,y=-5 has?

Posted by Anita Tawhare 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Sneha Singh 6 years, 10 months ago

2 solutions

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Ram Kushwah 6 years, 10 months ago

2 solutions

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Could you please explain the answer of question 4 in exersise 10. 2

Posted by Shahnawaz Hussain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

Thats why he wants all d answers in hindi

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Ram Kushwah 6 years, 10 months ago

AB and CD are tangents at P and Q and PQ is a diameter

since OP and OR are radius

{tex}\angle1=\angle 3=90{/tex} and {tex}\angle 2=\angle 4=90{/tex}

As these angles are corresponding angles and equal

Hence AB {tex}\|{/tex} CD

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Shahnawaz Hussain 6 years, 10 months ago

Pls write in hindi

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Anushka Jugran❣️ 6 years, 10 months ago

See, radius is perpendicular to the tangents.. So the angle made at the end of diameter in both sides will be 90 degree.. And if the sum of cointerrior angles is 180 degree then lines will be parallel.. Now also if u r not able to understand then refer Google

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Tanx/1+cotx = tanx -1/ 2- cosec²x

Posted by Karishma Pal 6 years, 10 months ago

CBSE > Class 10 > Mathematics