In triangle ABC, AD is perpendicular to BC. Prove that AB²-BD²=AC²-CD²
In triangle ABC, AD is perpendicular to BC. Prove that AB²-BD²=AC²-CD²
How to apply class 3 Digital signature online. What type digital signature required for e-tendering?
How to apply the digital signature for GST online. is digital signature compulsory for gst registeration?