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If tanA ,B andC are interior …

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If tanA ,B andC are interior angles of a triangle ABC then show that sin B+C/ 2= cosA/2

Posted by Tanu Priya 7 years, 9 months ago

CBSE > Class 10 > Mathematics

10 answers

Tanu Priya 7 years, 9 months ago

Thanks to alll

Ayan Ashraf 7 years, 9 months ago

Pamal your answer is obsoletely right

Ayan Ashraf 7 years, 9 months ago

Exercise - 8.3 ka question number 6 h ncert ka

Pamel Insan 7 years, 9 months ago

A +B+C= 180. B+C = 180-A. Dividing both side by 2 we get, B+C/2=90-A/2. Put value in L.h s sin B+C/2=sin(90-A/2)=cos A/2

Aditya Sinha 7 years, 9 months ago

ncert se hai bro

Ayushman Giri 7 years, 9 months ago

Question kaha se laii hoo bolo

Aditya Sinha 7 years, 9 months ago

Solve karna ka baad kya melaga

Tanu Priya 7 years, 9 months ago

Then plzz solve it for me

Aditya Sinha 7 years, 9 months ago

easy to hai

Tanu Priya 7 years, 9 months ago

Someone solve it for me plzz

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