the derivative of 1x would be 1 the derivative of x to the power of 1 would be 1. the derivative of x+1 would be 1 the derivative of x-1 would be 1 im not sure what you are asâ¦king, but however you put it, it's 1. 2 people found this useful.
Subduction-zone stratovolcanoes, such as Mount St. Helens, Mount Etna, and Mount Pinatubo, typically erupt with explosive force: the magma is too stiff to allow easy escape of volcanic gases. As a consequence, the tremendous internal pressures of the trapped volcanic gases remain in the pasty magma.
A whole lot of lava! 1  Mount Etna explodes into life as eruption lights up the night sky. 2  Mount Etna's latest eruption was caught on camera from Acireale, near Cantania, by German geologist Tom Pfeiffer. 3  The third outburst in a month, it spewed molten lava into the air and sent plumes of smoke and ash over the island.