Fix #513: Removed math latex tag from explorations

[rt4914]

Explanation

Fix #513

Currently two explorations contain math-latex tag and this PR removes them all.

Note:

1. I have posted screenshots below which explains how things have changed before and after.
2. Some math-latex was in different language so I have changed it but we cannot check that and that's not an issue because in future even the json files won't have math-latex tag, so that's not an issue.

Before / After 1

Before/After 2

Before/After 3

Checklist

• The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• The PR explanation includes the words "Fixes #bugnum: ..." (or "Fixes part of #bugnum" if the PR only partially fixes an issue).
• The PR follows the style guide.
• The PR does not contain any unnecessary auto-generated code from Android Studio.
• The PR is made from a branch that's not called "develop".
• The PR is made from a branch that is up-to-date with "develop".
• The PR's branch is based on "develop" and not on any other branch.
• The PR is assigned to an appropriate reviewer in both the Assignees and the Reviewers sections.

[anandwana001]

LGTM, Thanks