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• Identical expressions

• -(- one)^x*pi^ two = zero
• minus ( minus 1) to the power of x multiply by Pi squared equally 0
• minus ( minus one) to the power of x multiply by Pi to the power of two equally zero
• -(-1)x*pi2 = 0
• --1x*pi2 = 0
• -(-1)^x*pi² = 0
• -(-1) to the power of x*pi to the power of 2 = 0
• -(-1)^xpi^2 = 0
• -(-1)xpi2 = 0
• --1xpi2 = 0
• --1^xpi^2 = 0

• Similar expressions

• -(1)^x*pi^2 = 0
• (-1)^x*pi^2 = 0