prove-the-identity-D-nds-D-2-dA- Tinku Tara June 3, 2023 None 0 Comments FacebookTweetPin Question Number 6174 by madscientist last updated on 17/Jun/16 provetheidentity∫∂Dϕ▽ϕ⋅nds=∫∫D(ϕ▽2ϕ+▽ϕ⋅▽ϕ)dA Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: A-telephone-wire-hangs-from-two-points-P-Q-60m-apart-P-Q-are-on-the-same-level-the-mid-point-of-the-telephone-wire-is-3m-below-the-level-of-P-Q-Assuming-that-it-hangs-in-form-of-a-curve-Next Next post: Divide-10-into-two-parts-so-that-twice-the-square-of-the-first-part-plus-thrice-the-square-of-the-other-part-is-the-least- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.