File: /var/www/content-sp/wiris-cache/0fa86485d65ebad142f26cfb0be9e7bc.png
�PNG
IHDR * $ �ɨ+ pHYs � ��+ baSE 3��� �IDATx�c`��� ~ğ���U��
߇� 9�.k ��q����� \]��� QR�C¡�@�(8t�@��H�بC¡��ɰx��B�Vá�ա�@\ e� q �C�0��[@�7���PI�_��i(8t&�Bْ@<e�:T�7AC��J��h�cP8t��1P͂���@=���l��e(D���� Tx� b��Hah
#?�C�H��R����`� �A���^� tEXtMathML <math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mfrac><mrow><mo>-</mo><msub><mi mathvariant="normal">m</mi><mn>1</mn></msub></mrow><msub><mi mathvariant="normal">m</mi><mn>2</mn></msub></mfrac><mi mathvariant="normal">d</mi></mstyle></math>ki�&