�PNG


IHDR�8�F��	pHYs��
�+baSE�%��&IDATx��OHQ�/!!!Q�D""!Ѣ�Ѣˆm"����-"�6ADR��Q�l���	!*�U��E�T�ٹ�#N��s�̝�f�|��w�w�g枙���ј��I4�R
d�N�GN@<v��p�qJt���k�Ӝ�x<�t�N�
�c:���|8�,��ߢ���ő if:��{QA�B�&�m��s8~��Y���l�%z���S̲M4�壢v���RŶ�K�-;����^�Ð�.�l�ϑ��k��]U�
�Tg��;R"�}Z�A��Rx�E�C; �+s'*�}P�
R�!ai��a]8R"�}ڱ��\/q��X�C1‘ˡ>�vޯm�iD�5�qv^�ґ�~NGrfR�*�Ma�Kq$)w��L�ӳ�8��;G�`ܖ�q$���pXt7'�d���j�S\Mz+ڟ�Κ��&yNt>'��=�}fvc��e�j�X�էR^������҄[��g
�걯�,�1,�^S���p�
~���]^��&3w�9*gE�t.�jO����##
��ї�o�,�;~؄-��P�JuF	�����Ӝ5�K�v����/=�H��[j�=ǡ]��۟t�����1��q[��%�y�H.�I�*�Y���_���y,I��8s���I�`�^��%�C���+/�=0no�`oJM�aʓn?,�D�zQN���)����-/E5��a���\`_ڳ�~>�������\�u^֑�פ;��|^kHQ��zchΈ�>o5��	>�M`�
f&�')�!�>����[6�H��lS�y���[P�B����[�Mq��b�o�zr$RoA9"�1f!�ֈ�bߊ���H�ނR"�
f�
���o��k��Jv�z�Ċ̂#u�a�諧:��A��
:u��
�)?�U�п��OŞ�H�/q����l���*k����m	<�-0jǩ�k¯�M�8x�[`����Ty����G��,�Y�H�U6x���kY�]��5��+ԑ���e���hi�|1�e��3lj�r�
.�㤬�0��$�c�~�8�A@tEXtMathML<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mi mathvariant="normal">n</mi><msub><mi mathvariant="normal">n</mi><mn>2</mn></msub></mfrac><mo>=</mo><msqrt><mfrac><mrow><mn>4</mn><mi mathvariant="normal">m</mi></mrow><mi mathvariant="normal">m</mi></mfrac></msqrt><mo>=</mo><mn>2</mn><mi mathvariant="normal">&#xA0;</mi><mo>&#x21D2;</mo><mi mathvariant="normal">&#xA0;</mi><mi mathvariant="normal">n</mi><mn>2</mn><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mfrac><mi mathvariant="normal">n</mi><mn>2</mn></mfrac></math>�|&�IEND�B`�